It’s not like Sanji was left out of the entire opening though? I understand your frustration, but is it really worth protesting? I doubt it’s on the same scope as a McChicken, which would be worth arguing to the manager about.
I don’t see any gain in getting bent out of shape over it and doing so can have the opposite effect. It already has, and OP’s other fanbases have their own problems as well.
Also, I don’t think it’s fair to say she’s playing the victim. There’s no evidence that I know of that indicates she left out Sanji with negative feelings and her response to the tweet shown earlier seems to confirm that. If it was an honest mistake, I’m sure it will be corrected in the next opening.
It’d be terrible if we lost her as a director. I remember really enjoying Episode 1015 and it’s clear that she’s very talented.