>>29146094
Even if the law was changed I'm not sure they would stop. The mosaic you see in mainstream JAV goes WAAYY overboard compared to what is actually required by law. Compare the mosaic in your average modern JAV to some of the stuff released on amateur markets like Fantia or Getchu.
Here's a random anal plug clip from Roku Kuroi's Fantia.
It seems like as long as you make even the slightest attempt at a censor the government is fine with it.