The main issue with Barbie is that people seem to be expecting a purely light, fun family movie, when it’s actually written by Gerwig and Baumbach and contains serious political, feminist and adult themes. We know this from test screenings. We know Margot Robbie’s reaction when she first read the script was that this movie would never get made. It will be contentious.
Some people will love it but imo it has the potential to be divisive, and that will limit its ceiling.