It depends on what you mean by traditional. If you're talking about a "tube" site, then you're probably right. But no namebrand porn studio would do something like that.
I don't think that's true. There are plenty of horror stories from people who have worked in "namebrand" porn studios, including instances of consent being violated.
Well, "traditional" in the time we're living in - websites, hub and cam sites (going around regulations), and sites where you can sell "your own" "content".