All sexually active women have regularly done BB with someone at some point.
Therefore, all WGs have regularly done BB with someone at some point and will no doubt have a bare dick they've decided to trust in them, from time to time. That being the case, while trying to promote themselves as hookers and/or webcam performers, don't you think at some stage they'd take advantage of having a cock they at least reasonably trust, deep in their holes at many different angles and take snaps of it? If she trusts the bloke not run off and make hay with the snaps and vids, she also must trust his cock. It hardly implies she's barebacking every fucker who walks through her door with a thick enough wad.
So where do you draw the line? The important thing is that she isn't doing it with punters or multiple partners she knows nothing about the sexual history of.
In contrast, most pornstars are also hookers, in fact nearly all have been at least at some stage. Many are hailed on here as brilliant, hardworking, high-end, reliable safe, hygienic girls, who always use condoms with punters. But as "pornstars", by definition they are regularly barebacking with multiple partners, albeit comparatively safer ones who are, presumably, also regularly tested. Although even here there is a window period of several weeks where infections can be undetected and passed on.
Then of course, there are the many documented cases of simple hookers who claim not to bareback but do so for extra as soon as they're directly asked.
If you're really concerned about this issue, perhaps one of the two examples immediately above is where you should start. instead of picking on, what is by all accounts, an honest, safe girl without any first-hand accusations of ever having offered BB to a punter.