To do what you want, Disney would have had to close down the hub and make all guest go around the long way.
You would be one of the first to write negative things if Disney was working on this project 24 hours a day. You would be upset that there was to much noise and to much going on during times the park was open. You would also complain if they closed done the entire hub area and worked on it all at once.
I have had to work on road projects and keep them open to traffic at the same time. I can tell you that it is not a money issue to do the work only at night. Disney would save money by closing the area and doing work 24/7. I can see what they are doing is trying to find a good middle of the road between shutting down this major area and keeping as much open as possible.
Well, thank you for speaking on my behalf since you know me so well.
Wait... actually, you don't and I'm a very strong advocate in the opposite direction.
Disney Parks use to prize show quality as their second pillar to uphold after safety. What has been lacking under recent management is adherence to this tenant.
I believe that every wall or scrim that goes up is a sign of the positive. It's only when they don't come down or don't go up in the first place that they carry a negative connotation.
You've made the assumption that I would complain if walls went up blocking all of the Hub. That is far from the truth. I may not agree with the need to do this refurb and the reasons why it's being done (btw - the reason is that TDO believes it needs more pasture for FP+ cattle for fireworks/parades/Castle shows); but, that's not what is being debated here. What is my debate is the approach and speed at which the work is being completed and the impact that dragging this project out over what will be a year and half have on the quality of what is being experienced at the Magic Kingdom is.
Instead of using hypothetical examples of "what if they did this or that", let's use practical and current choices when it comes to major construction inside a Disney Park?
Let's use DCA as our case model.
DCA needed to redo their "opening stanza" in somewhat of a similar manner to what MK is doing with their Hub. The "main street" and its surroundings needed plussing. What DCA did is they temporarily closed down ALL of the entrance plaza and street and rerouted traffic though backstage access until the project was close enough to complete that the street could open while work continued on the details. They were willing to take an entire section of the park offline to get the project done as quickly as possible.
Now, DCA didn't have as significant of a parade or show on what is now Buena Vista as MK does at the Hub, so let's use another example of making "tough" choices to the work done - the upcoming work on World of Color 2.0. This January, DCA is going to take WoC offline for three months (along with likely periods of time where other attractions at Paradise Pier will go down as well). They are willing to inconvenience 3 months of guests to get the project done.
This is the difference between what WDW use to be willing to do versus what they aren't willing to do now. They aren't willing to make "tough" decisions. They are doing so under the guise of not wanting to inconveniencing the guest. They could close down the Hub and knock this project out in a matter of a month or so; but, they aren't willing to do it. Too many guests would complain they missed the MSEP or Dream Along with Mickey. This is the same excuse they use for not closing down attractions like Splash when part of the Mountain fell in on the loading platform and they put up netting instead until it could limp until the next scheduled refurb. The same was true of the Tree of Life and it's falling branches. The same is true of the current condition of Pirates. The same was true of why Space Mountain got quick patch job instead of an extended plussing that it needs.
The sad fact is that TDO is selling this lie under the idea that is for the best for us. In reality, it’s because of the costs to them. The don't want to pay to get it done quickly and they don't want to pay the "cost" of if they pull rides or attractions down - they don't have enough capacity to keep up with it.
What's going on with the Hub is analogous to what is going on with the Yeti, or the sad state at DHS or EPCOT.
What's even sadder is that guests have settled for this level of apathy.
Ultimately, if the Hub takes 1.5 years that will be ~ 27 million guests that will have that hole in the ground as its memory. The alternative would've been to have less than 4 million (assuming they could do the work in a quarter) be more inconvenienced by having parades and shows cancelled.
Your road construction analogy makes the assumption that the mandate is predetermined that things need to stay open and flowing. Disney Parks didn't use to put that as their driving factor. They use to care about the quality of what was left up and working versus the quantity. I miss a WDW where the quality of a guest's experience mattered and just being open wasn’t good enough.