Lack of diversity
Just like in his other films, hardly any actors of color. Out of all the great young actors out there doing great work, he casts the rich white kid whose acting chops are eh. People always want to just cast people who look like themselves in the lead, and pat themselves on the back if they cast a couple of pretty young non-white women in very minor roles. Leads stay white.
And this supposed innovative action film with incredible sound and music isn't forward thinking enough to see the diverse place we live in. I don't care if you can film your background extras moving to the rhythm of the beat, or any of the other technical gimmicks used to make the film "visual," if you don't give mere opportunities to great minority actors.
Elgort and the chick have done what exactly? And they're already leads in huge studio pictures. So many artists of color did great work this year...