Well, it goes many ways to Sunday, but long story short this has potential uses. Just imagine if an extra on Stupid Franchise That Needs To Die VII could get it yanked if "I didn't expect a certain character to make any appearances" could be a valid argument. (Though I joke, misrepresentation of contract is legally dishonest but should have been a tort with the production team, not a DMCA claim with hosts. She should have taken it one rung up the ladder, so to speak - Google is "too late" in that process.)
This exactly. Its not that the actress doesn't have rights here, it's that the court affirmed the wrong rights. If the filmmaker materially misrepresented the film or the role in writing, that should be a fairly straightforward lawsuit.