I’m sure they care more than that. Global opinion matters, especially if it can influence policy makers, particularly citizens in the western developed countries.

That's only partially true, in a world so communicated a lot of people are going to contact their friends living in Saudi Arabia and tell them what they think about the film, a lot will see this news on reddit or elsewhere and realize its being censored.

They only care that MBS shouldn't watch it or learns about it and get upset. Everything is low cost enough to make happen for that risk!