I don't think she is entirely to blame, but I think there is some blame for not standing up to Musk and leading better.
That seems in the same category as saying there's some blame on her for not working harder on basketball in her youth and so never becoming a WNBA Finals MVP. (Narrator: Um, no, she's not nearly tall enough ....)
I don't think you become the CEO of any major company by believing that "social responsibility" exists. Doesn't the job pretty much select for the type of person who thinks the world owes them $20+ million a year?
With that said - it's dumb to blame the puppet for the acts of the ventriloquist.
She was paid $6M a year + undisclosed stock package. A lot of people will set aside their morals for this amount of money.