Steam's adult games, "incest," "hypnotic stuff," etc., have been deleted one after another. Is it in response to the tightening of the crackdown on "content that should not be distributed"?

Steam's adult games, "incest," "hypnotic stuff," etc., have been deleted one after another. Is it in response to the tightening of the crackdown on "content that should not be distributed"?
It seems that a number of adult games have been removed on Steam....

The linked article is in Japanese.