Yes, I see what you mean.
I have doubts about Rachel Moran as her story has been called into question. I'm not sure what the truth is, either way. But she says things that do not mirror my experience. Recently she tweeted that when she answered the phones at a brothel, the most common question was, "Who's the youngest girl on the rota?" I answered the phone thousands of times in my years working in a brothel (whoever was closest to the phone answered it) and I don't remember ever being asked that. I assume that the majority of men do prefer fit young women over older women (as our whole society does) but they don't seem to express a particular interest in teens. Obviously, this predilection does exist but I am not in a position to assess how common it is. Not only am I not attracting those clients, many probably don't feel free to openly express this desire on any of the punting forums. I do hear men saying that they are not comfortable with women that young for a variety of reasons.
You say that a lot of punters want a passive body they can penetrate but I don't know that that is true. I will say that even the most misogynist review site (UK Punting) is full of complaints about girls who are passive and seem uninterested. Most of them take the tone of "If she's not happy to do this job, then she should go stack shelves at Tesco" but there are also quite a few that express worry that she is not there willingly. Either way, they all seem very keen on a girl who seems to enjoy what is going on. There is also a lot of emphasis on how skilful a prostitute is both in the marketing and the reviews and feedback. Reviews of mature prostitutes often say things like, "She's no oil painting but she sure is horny and she has the best oral technique I've ever experienced." Not very suave of them, but it shows that their interests lie in her enthusiasm and perceived skill.
I'm not sure why women don't buy sex but I assume it is because women want more of the things that are not available by the hour, including an emotional connection. Since females of our species have a lot to lose by mating indiscriminately compared to males, this may actually be hardwired into us genetically.
You say that for you good sex is based on an emotional connection. Obviously, that is not true for everyone. I prefer sex with an erect penis involved and have little interest in sex that does not involve one, but I wouldn't say that a lesbian is doing it wrong.