The problem is that many of the recent updates have massively favored coasters, creating a situation where capacity concerns aren't alleviated nearly as much as they should be based on the amount of sunk capital.
Cosmic Rewind has a large capacity, Rise-level pricey, but still, massive capacity.
It's more about updating existing rides and adding new capacity (ie. TRON/Ratatouille).
I don't see the argument that capacity concerns aren't alleviated as much because rides like Frozen: Ever After and Test Track have much lower capacity, if they're all like Slinky or SDMT, sure, but they can also be like Everest...
There's nothing wrong with adding coasters, but they probably need at least 4-5 non-coasters for every coaster they add per park, and they haven't done that.
I think the obvious next step for HWS is adding a ride like DCA's new Avatar boat ride. No height requirement, boat ride, high capacity, and a headlining dark ride like Pirates of the Caribbean. A small dark ride would be nice, too, if they do that for a new land. I do feel Monstropolis corners something that's been needed, and everyone here is overlooking right now, it's going to be a mega slam dunk, and because the land is mostly a redevelopment of the current park, it will maximally utilize underutilized space. It really will mean that either AC or Indy likely are gone next for large expansion.
The bigger mistake was knocking out GMR for MMRR; it would've been a perfect improvement to just create a new build. The Door Coaster should've been built a decade ago, so it's just fixing that basically; HWS has needed a third coaster badly. Slinky's waits are routinely the most at Disney World, which is absurd.
I think all the parks could use another 4-5 coasters, honestly, outside of MK. It could still use a Hagrid's/Taron type of attraction, and I'm betting that Villains Land will have that.
A Door Coaster is needed, and the park is more comparable to Universal than the other Disney parks. It can easily handle its first truly "themed" one, but HWS will remain underdeveloped still. I can't imagine that with $60B, they'll be done with Monstropolis. It's like, if it opens in 2028, they could easily have another land by 2031...
I think Disney has finally woken up to what they need to do.