This is what some of you folks just cannot wrap your heads around.
YES! WE WOULD ALL LOVE EVERYTHING TO GET A DEDICATED 300M ATTRACTION!
No one has said otherwise. So why constantly folks harp on it like no one agrees is really perplexing.
Saying that was the "alternative" simply is uneducated. Because it's not what Disney does at WDW, it hasn't been for a very long time (if it ever really was aside from initial build-outs, and not even then - hello AK!), and holding on to the fantasy that somehow this will all magically change is naive, at best.
Let's say you really really want a steak dinner. You are starving. You haven't eaten in days. Are you going to spit at the cheeseburger you are offered? It may not be what you want, but it's food - it's sustenance - it's better than going hungry.
Truth be told, if they were putting a $300M Frozen attraction at WDW, at least half these folks would STILL be complaining because "ugh how can they be putting all that money into Frozen, flavor of the month!" Also mostly the same people who complained that Disney didn't have something ready to go when the movie came out. Essentially, no matter what they did with Frozen, many of the same folks would be complaining just as heavily.
This is the groupthink on this - which completely ignores that to the outside world, this is FABULOUS NEWS - Maelstrom has reportedly been among the lowest rated WDW rides in terms of guest satisfaction ever, it's being replace by what sounds like a lovely little ride with some neat effects on a theme that appeals to MILLIONS in ways that Maelstrom never did.
Now, capacity issues? Sure, that's a valid concern. It's going to be an issue. But this community is clearly completely ignoring the fact that this is not "bad news" to anyone but those clinging to rose-colored memories and the old company PR about the company and Epcot in general that they bought into hook, line, and sinker as kids and haven't been able to rationally see for what it was.