You know, I went to Universal yesterday. First time -- I'd been to IO about five years ago. Brought two nieces with us. Bought Express Passes for the kids -- my wife and I didn't have any because we weren't planning to ride anything but Harry Potter.
$1576 without Park Hoppers -- 1650 with park hoopers (we didn't get them). Every single ride we saw there was at least 45 minutes standby -- the big ones were all at least 100. Gringotts was 60 minutes at 8:15 am. Even with the Express Pass, we waited usually 45 minutes for the kids (Mummy, Minions, Simpsons, Rocket, MIB).
So my point is that anyone thinking that Universal somehow has a magic ticket to crowd management and satisfaction is wrong. It's the same thing over there that it is at Disney. We averaged $225 per person for the day we were there without food and still waiting in lines. There are just too many people.
I think this is an effort to give people the chance to trade less park time for fewer crowds (I don' t think that's what is going on in the mornings. The morning changes are about mitigating/reducing Rope Drop). You get six hours of park time -- half of that with crowds that are at least half capacity. If I were betting, WDW is headed toward a split day system for crowded seasons, where a morning ticket gets you to a 7 pm parade and a night ticket gets you in from 4-midnight or 5-1-ish. WDW looks and sees that other theme parks operate for about 8 hours a day and figures that's a fair amount of time for people to spend at the park for a basic ticket (the day ticket is more time because there will naturally be more crowds). There are just too many people to assume the crowds will thin themselves out, so WDW is trying to find a way to do it for them without turning people away at the gate. Mid-range adults and 10+ kids probably gravitate more toward the night ticket; younger families and older people stick more to the day ones. The probably offer a $200 stay-all-day ticket.
I don't think it's evil and I don't think it's a money grab. It's an attempt to get a handle on too many customers and a limited capacity to handle them.