I think that's academia bleeding into the real world, as so many academics with phds can't get academic jobs unless they come from Yale or Princeton.
But I think the article does make a point about just reaffirming particular ideas about conformity within a pretty narrow scope and it seems like it doesn't do a good job of revealing the "banality of evil", as Hannah Arendt would say.
Also, these movies have a tendency to glamorize elites, to normalize very top-down political structures, and particular forms of beauty, too. I think since young girls are watching and internalizing some of the messages, it's not necessarily a bad thing to think and have a discussion about what these movies are actually saying to them and reinforcing in their heads.
Of course, the best way to deal with this stuff is not to ban them from seeing it, but to have a conversation with your kids about what a particular film says or means. We like to watch lots of old school B films as a family and whenever it has problematic depictions of women or people of color (which happens a shit load and often together), we tend to use that as a teachable moment rather than stop the movie and say "you can't watch this". I think my daughter probably gets more out of it that way than if we had just not let her seen it in the first place. She's actually gotten to the point where she applies the Bechdel test to movies that she watches now, which is kind of neat to see.