Its possible that people appreciate different things about movies and that arguing about subjective interpretation of art is pointless regardless of the qualifications.
But he specifically said that not everyone has to like it.
It is possible something is objectively very very good (depending on the criteria picked) but is still disliked by many. Similar with a lot of stuff happening around the fight against the speed of climate change.
But he specifically said that not everyone has to like it.
He said not everyone can handle it, implying there's something with people that don't like it.
There's this irritating Emperor's New Clothes thing with movies and TV lately where creators can make the most boring stuff imaginable, and then when people say it's boring you simply imply they aren't smart enough to understand it.
And to add to my previous point: even if he has objective criteria, they are worthless if he doesn't specify them.
I would actually even argue that with movies the subjective rating is part of its objective success. You can do everything by the book and still lose if no one likes it.