Well, the reason this is not as simple as you would like is this: clearly, the original incident was not AirBnB's fault; it was a crime that happened in the same context as any other rental or lease situation, and (as I've posted in volume elsewhere) it happens. I've had tenants, so I empathize with her immensely, but it's still not even close to AirBnB's fault.
So insofar as the original incident is concerned, you're not wrong. She wasn't victimized by AirBnB.
And in fact initially AirBnB reacted quite admirably - until she posted in public. Then AirBnB stopped reacting admirably.
There have been some rationalizations for the fact that all contact with the company ceased except for some apparent invitation for a coffee, there's been a request and no doubt a fervent desire on AirBnB's part that this not be quite so public, or at least if public, not quite so eloquent - so you tell me. When a company cuts off contact with you because you endanger their funding, then lies about it in the industry press, is that victimization? I don't know - but neither do you. Which is why I said it's a tougher question.
Also, I'd really like to differ with you rather vehemently with your oblique assertion that the Internet should be seen as a "substitute" for a real community. Where do you think you just posted?