Many of you seem to expect the producers of Honey Cream, Teen Starlet, Brandi Blair, etc, and now Kris Karson, to suddenly change their style. Either you're not familiar with those folks or you're letting your libido override your common sense. (I would have said "your dick" instead of libido, but I suspect there are many women also interested in these websites).
Their style has always been softcore tease and they've never shown signs that it will ever be different. Who knows why. Maybe that's the style they're comfortable with. Maybe it reflects their sense of what is art and beauty. Maybe it's because they feel that's the niche that has the most profit potential. Maybe it's because they deal with too many young models that they don't want to stray into accidentally producing legally problematic material. They've had models who've demonstrated on other sites that they're comfortable taking it further. It's not the models. It's the producers. So, regardless of what you think the model's are capable of, or what you think would be in their best interest, or just what you're hoping for, you're not going to see it on a site produced by these people.
Maybe if you set your expectations for that, you won't be disappointed when things don't evolve much over time.