However, if the reports are true and she is MJ, it appears as though they were planning to keep that a secret until the film.
If she truly isn’t MJ, then the studios should have no problem with her refuting those claims.
This is a very different approach than she has taken in the past.
She has previously been rather blunt in squashing rumors that she is actually MJ, but with this change, it is possible that she could have already gotten in trouble with Marvel and Sony.