Fundamentally, neither of us know her and we're coming from very different places so there's no way to resolve the disagreement. You're taking everything she says at face value with the maximally generous interpretation possible. The video went viral because most people aren't willing to do that. Instead they're applying their priors based on experience with similar people. 23 year old TikTok influencer types who like to post clips of their easy life have a very high correlation with people who aren't entirely honest, and the #womenintech hashtag combined with humanities backgrounds has a very high correlation with women who don't care about tech at all beyond it being a gateway to an easy life. The video does nothing to dispel that impression and absolutely everything to reinforce it. It doesn't help that the PM title can mean anything from a Steve Jobs to a glorified meeting note taker.
But sure, if you want to believe that there's nothing wrong with that video and it says nothing about decadence at Meta then by all means, go ahead. Makes no difference either way. Others will draw their own conclusions.