What's the point of a poster lying about Ms. Marvel being featured in trailers and you giving it a thumbs up?
https://www.ign.com/articles/2019/10/22/why-kamala-khan-was-chosen-for-marvels-avengers-protagonist-role
It was well known she was the main character. I can post lots of trailers and articles easily disproving that lie.
She was the lead character of a game that lost the publisher over $100M. She had her own TV show that barely anyone watched. And now she's a co-lead of what is going to be a bomb.
At a certain point you have to call a spade a spade. People aren't interested in the character in a mainstream sense. It is what it is. If Marvel wants to keep pushing the character that's fine but it'll likely result in people tuning out, as evidenced by a game, a TV show and now a movie. I was merely listing examples to back this up, nothing more, nothing less.