My points of view, it is abnormal and doesn't suit for regular viewer. For some actress such as Mikari Atani, I enjoy most of her movies since her debut but when she wear fake penis and "dominate" f*ck a man asshole in some movies! That was too much for me =.= then I'm done.
JAV nowadays become more popular over the Japanese's border, so mostly directors are explored their imagination in order to maximize the DVD revenue, a lot of "weird" contents has born. I like JAV once upon a time, no plastic, no surgery, not much tools/devices, original beauty. Truly AV