whoever was taken in by the girl's facade was foolish and responsible for their foolishness
On the one hand, yes. On the other hand, a large chunk of the audience for influencers like this women consists of
very young girls who are still forming their ideas about beauty standards and what sort of appearance they should try to achieve. And if looking at images of women who conform to a certain beauty standard causes girls to adopt unhealthy diet etc. habits, then we could argue that influencers should be held accountable.
But this has nothing to do with photoshop: even in a world without photoshop, the vast nature of social media would ensure that a couple of ridiculously beautiful and charismatic people rose to the top, and their perfect image could still be harmful to the impressionable. For this reason, I don't really have a particularly strong reaction to the apology either way. I take it for granted that the people I see on social media and TV are heavily photoshopped, and the idea of a celebrity apologizing about this seems more like a way for her to reconcile her cognitive dissonance (between how she looks in the mirror and how she looks on screen) than an attempt to amend a specific harm done to someone.
And despite my view that social media can, in principle, be harmful to minors, I still thing the benefits outweigh the costs and I wouldn't support a regulatory structure that requires minors to verify their age before going on YouTube or whatever.
For contrast and general interest, here is an apology video by a Korean influencer/startup founder:
I don't know all the details, but I think the scandal was that she had been a really aggressive boss, yelling at her employees etc. The thing about this apology too is that it is very devoid of specifics; you can tell that she is sorry, but she doesn't say exactly what for. But I don't take the strict view that says that a "valid" apology has to follow the formula of "I acknowledge the harm I have done, namely xyz, and I take full responsibility …" because sometimes an apology is due in the moment but it takes months or even years of reflection to understand why your actions were hurtful to the other party.