I don't think anyone is surprised that there's demand for it and has always been. And that their colleagues will fulfill the demand, no matter what they say publicly. The only question is at what risk to themselves and for how much profit? For some, zero risk is desired and the short and long of it is they don't need to ever do it. Some people do it without even seeing a test, for whatever reason. Everything else is in between.
This thing is such a grey area as far as "will they and won't they" that its pretty much summed up as YMMV on so many levels. Let's talk the porn world briefly.
They exist in a closed ecosystem where everyone understands some cardinal rules and, to my understanding, do not violate them. And in an ecosystem that is self-enforcing to some extent. The golden rule is simple: don't fuck anyone who isn't as careful as everyone else in the business. Preferably, don't fuck anyone else who isn't in the business or who isn't your SO. Clean test, every time. Proven without a doubt or you walk and you let the rest of the community know that so and so is bad news, unprofessional, etc.
Even the random clients who engage with PS escorts are a risk to be factored in. Ok great they got the same test as you; how many other people did they fuck that week, that month? That day?
Money weeds out the reckless and cheap and at least means the reckless have to be able to pay like they weigh to show up to begin with. Reputation in this world and with that individual providers weeds out the reckless.
Sorry, going to have to put the work in for a "maybe" at best. This isn't the type of thing that should be guaranteed. Because everyone knows that the average bbfs eskimo bro is going to go for the sure thing. And anyone who will go to the fast house to scratch the itch isn't someone you wanna see, whether they are tested clear on TTS or not.
Elite courtesans I assume do not need to do it but, may or may not consider it to retain a valued client (like very consistent, trusted, and/or high value month to month), because they prefer it (rare but possible) but need to weed out the riskier candidates, or who knows, things might happen in the moment and they really liked you and you really liked them and sex brain was involved and fuck it, well it happened.
Regardless, public statements on the matter are gonna basically just be another form of Glomar response "We can neither confirm nor deny." Or a form of virtue signaling; like the clients who talk about the dangers of BBFS but meanwhile they were the guys in your TER DMs trying to figure out if "this year's girl", who you just posted a review about, actually does like to get filled up like a toaster strudel. And if there's anything you can tell them that you left out the review, etc etc.
Idk, if you want an answer to a forbidden question off the record, provide an incentive for that answer to be given discreetly; pay for the information and ensure that the answer can't be screenshotted, recorded, or otherwise disseminated beyond the two of you.
I'm sure the amount would vary (I'd offer her an hour's work compensation simply to answer "yes, no, it depends), but if you truly covered your bases and made sure this was strictly an anonymous inquiry; no blowback for either party (no rumors being started either!), compensation for time, penalty tax for being a dumbass (cause you know you're not supposed to ask about "it"), and promise of silence on the matter. Yeah if you did it like that, maybe you could at least get your yes and no's sorted and narrow down the field. And that's a big maybe.
How bad do you want to see that lady? And should she expect to see you again, more than once or twice at best, if she did let you do it?
Risk vs reward. Everyone's got their own answer to it and there's no other way to find out except to go find out yourself.
