Speaking as someone who drives up from San Diego, that plan was great. For everyone else, that's another matter.
As it stands right now if we follow the signs then we end up driving over surface streets through seemingly endless signals to eventually land at Toy Story. Then you hope your bladder holds out until you get to DL. Or maybe that last part's just me. And if the bus line is really long (which definitely happens) then you're looking at quite a hike to walk to the park entrance. Not to mention the huge intersections you have to cross. It takes me about 15 minutes.
Or alternately you can do what I usually do and get onto Ball Rd. and hang a left and pray Mickey and Friends is open at the time. But that's a gamble. At least it has a bathroom. And the walk to the park is way shorter if the tram line is long.
The new plan would have us use the large north off-ramp they built years ago and drive through only a few signals to the entrance of the east parking garage. From there it's a short walk to the entrance of the park. I gave up on the trams years ago because it's almost always quicker to walk back and forth to the park. The new walk will be would have been shorter and over an actual bridge rather than having to cross an intersection.
For us, (and I know that's not everyone) that original plan is about as good as it gets. I wish they'd done it years ago. Splitting the north and south bound traffic between two separate parking garages with a minimum usage of surface streets would be a very good thing. Best plan ever. For us coming up from the south, anyway. And I'd assume it would take quite a bit of the load off of Mickey