I get what you're saying. But the CSS is nothing but tiny little headshots. It is impossible to discern the content or nature of the game from this screen. You can't, for example, see how sexualized ZSS is from her selection tile at all.
The ESRB explicitly asks for the most extreme examples of certain content: sex, violence, religious iconography, etc. The CSS in any form of completion does not lend any insight into that kind of content.
In fact, since the CSS is nothing but headshots, everybody could be totally naked and you wouldn't even know. That ambiguity is what makes it meaningless to the presentation.
For example, the video does not show complete list of trophies by name before focusing on the actual relevant content like Tharja and Candy Kong's TnA
The CSS just demonstrates the mechanic of selecting a fighter, not the explicit content any of these fighters may or may not portray. How many characters are on that CSS are trivial if the only point is a quick breeze-through of the fighter selection process for posterity, you know?
But I don't know what to believe either and I'm just playing Devil's Advocate, I guess.