"Bad optics" usually means an action is violating some rule.
Sometimes the rule is good, and the problem is that you are an idiot violating a good rule.
Sometimes that rule is bad and it's good to break it. There's a lot of nobility in doing what you believe is right and accepting the consequences. And there's a lot of good in a culture that does what they think is right without concern for public opinion, even if this comes with a bunch of offputting stuff that makes their job harder.
Sometimes the rule is good, but if people paid enough attention they would realize it does not apply in your particular case. But people don't owe you infinite attention. Depending on the specifics it can be fair for people to round you to scenario 1 and proceed accordingly. "But I'm right" is not a defense in this case even to people who agree with you that your case is an exception, in part because disregarding the rule weakens it, and that's bad because we've agreed the rule is good. So sometimes you should obey a rule even if you know for sure it doesn't apply, to stay legibly good to others.
For example, I think "don't put financial crime felons in charge of large amounts of money" is a good rule. It's not a perfect rule- some felons learned their moral lesson, or just aren't going to have the same opportunity to steal. But overall we as a society are better off with that rule, and I'm comfortable with the collateral damage of people who commit financial crimes having worse jobs later.
A lot of the criticism of Austin Chen hiring Caroline Ellison has focused on the fact that people will judge EA for it, and Austin's defense has been that she's really good at the job and has learned her lesson, with an implicit claim that people the people judging EA for this hire are wrong. But that's insufficient- this is scenario 3, and you need to prove not only that she is an exception, but that detecting this is sufficiently cheap. He hasn't tried to do that, and I don't think it's possible. So while I'm normally disgusted by EA calls to optimize for optics, in this case I think they're right.
People were unwilling to work with Ross Rheingans-Yoo?! People were unwilling to work with Joel Becker?!
Absurd. Obviously neither of them did anything wrong whatsoever. Nor did anyone else at the satellite orgs.