With enough changes and reducing the number of guests using it they could have something still going but it wouldn't really resemble FP or FP+ anymore at that point. FP+ wasn't sustainable because everyone had access despite there not being enough capacity to support those numbers. It also heavily favored people that knew the system inside and out. It caused a TON of complaints due to the excessive planning required and often completely screwed over those that were not familiar with the system.
Sure, the 7 am part stinks for a lot of people but it wasn't really reasonable to expect people to know what hour of the day they wanted to get on a specific ride months in advanced of their vacation. Also, people always have the option to just not get up at 7. You might miss one ride doing that and thankfully, once they cut back on the number of DAS abusers, that will be even less likely to happen if you sleep in. If you do miss it, get in standby where Disney has said they will provide other accommodations for those that can't wait the entire line.
Someone offering excuses for people using DAS when they don't need it because they don't want to pay for G+ is letting them avoid personal responsibility which is all I was talking about. As for the rest, yes, Disney has to offer reasonable accommodations and I don't think anyone disagrees with that. The point is that reasonable does not include DAS level of access for every last person to enter the parks with any sort of disability. It is reserved for those that NEED that level of accommodation. Everyone else will get alternative options to help navigate their needs.
So, someone could schedule their entire trip, hour by hour, 30-60 days before showing up for vacation, but they are unable to push selections in G+ to times that work for them day of? Who would fall in that category that isn't still covered by DAS?
Sure, but in order for the math to work on the numbers Len has reported, a lot of people on DAS are getting a lot more than 5 and in many cases.