I had clicked through the entire EW article, and it really seemed focused on the charity event/announcement as well, but obviously there will be Endgame promotion as a (purposeful) side effect. I'm cool with that as it's a great cause.
I think they are confused on the 'ride'. There is a photo-op area with a mock F-15 and some other props where you can take pictures, but it looks like it was opened in March. There were also several Reddit posts about how encouraged several felt after seeing the movie (or some previous comic/movie/tv show such as Wonder Woman) and having a representative role model they or their children could identify with, which I also thought was cool.