Well, John Price has only just started doing that fairly recently; he hasn't exactly been doing it for "ages", as you say and the text I linked to primarily concerned him, after all. As far as I can tell, he doesn't have a history of scenes that are anything other than hetero porn prior to this; unlike some of the other male performers working for that company. Perhaps I should have referenced him specifically in my original post, but that would have excluded other veterans of hetero scenes working for that company who John Price was possibly including in his reference; like Neeo, who, as discussed in this thread recently, is yet to make his debut despite having done gay/bi scenes at the earliest point of his career, more than twenty years ago.
Anyway, there's more coming- that was the point, really.