That's just too much of a burden for anyone. I've been to Europe just a very few times and not in the last 15 yrs, but I never felt like the sum of my whole self depended on that one only shot to get it right. (I say Europe because that is a seldom experience for us personally which takes out the local laid back vibe.)
There are different approaches and everything needs balance. I was trying to bring down the expense and pressure at least a tad, and you say 'this is basically their only one shot' which does NOT alleviate any pressure to OP or others who perhaps may be feeling like it is more like work than a vacay...
As for the Advertising argument, after the money they spent building it, of course Disney wants to advertise the newer rides. But believe me, a 90 sec hill is NOT the sum of a vacation. That will seriously lead to disappointment. A commercial is about 15-30 long, so that's about all they have to get people to book. Of course that's what they are going to highlight. All of us as consumers have to decide what it is that we want to buy. Are you buying time with your family for a week with some cherished characters, or are you buying the 7Dwarfs 90 sec ride? It's all perceived value. That's all advertising is. (Thank goodness its more than 7D, or we definitely wouldn't have moved here for that...)
I think there are two conversations here. One is perhaps that OP has had a crappy (x amount of time) and just can't get enthusiastic. I sincerely hope they can leave some stress behind and enjoy the "bubble".
Others are chiming in that the amount of planning and $ to achieve so called perfection has made it a burden and they have lost some of the whimsical fun they used to look forward to, getting bogged down in the details.
I'm just pointing out that it DOESN'T have to be that way. Find the right tickets for your style and budget, find the right accommodations, book 3 things a day you like, and a dinner if you must, and bring back some of the balance and fun and don't over think, over plan and over spend.
I sincerely wish OP the best time next week. Ill be at the parks with you!