You are putting a little too much power behind what a few people on Twitter or at videogame sites say. Are you sure that they are the reasons some genre don't exist anymore? Are we sure this is actually why some games aren't getting exported anymore?
Those admittedly few people on twitter (even the biggest "controversies" are just a circlejerk of a few dozen people) have resorted to doxxing, hate mail directed toward minorities working at the company (the Tomodachi Collection situation), and gross distortion of the facts, and have symphatizing people at mainstream media and the specialized one game developers rely on for promotion, only to find review scores (and metacritic scores tied directly to their development scores) slashed.
Deponia had "journalists" rejoicing the series ended, and that its fans need to learn one such problematic series needs to end. The fourth game released unpromoted. Jet Suit Larry has an Eurogamer reviewer writing a news article where she's upset her previous 2/10 review of the previous game didn't deter the developers from making a new one, and that the series has no place today. The very guided Super Seducer visual novel that has only one possible ending and everything uncouth leading to early game overs... that they got banned from PSN
after expensive certification and release and asking Steam for clarification how come it's still allowed on their premises... was for example banned not because of its content but because games made about pick-up culture are
inherently problematic and shouldn't exist, period.
Koei had a Casca costume removed from the overseas version of Berserk, that's otherwise a mature-only version uncensored from the JP version, despite being promoted in the trailers, directly because of a blitz of articles. They confirmed in various statements about Dead or Alive Extreme 3 (which was imported from Asia to specifically be offended about, and in a self proclaimed bid to stop these asian english releases in the future) and DoA6 the press reaction is what "made them think" that content was impossible to release overseas despite them already prepping for it. Namco has a Summer Lessons VR game (that's wholesome, by the way) suffering a similar media blitz and forced into JP-only status, and considering making some content exclusive to Japan and Europe, which they already started doing with Digimon (and that tweet was by the way deleted because some "fan" threatened suicide to Harada pretty convincingly, to put it mildly, if he didn't) Only Xseed is exporting that kind of games anymore, and pretty sure they had some staff accused of career ending charges, and asked pretty directly by press why they keep bringing that genre at all "in 2016".
The outrage about Steam's policies now allowing content it didn't before, under the guise of "bring back curation" to "protect from insensitive content" like in the "good old days of steam greenlight" (when even famous veteran developers like treasure and their ikaragua version were denied)... that should be pretty telling.
Praising the localization of Fire Emblem Fates and Tokyo Mirage Sessions, both of them glorious trainwrecks with as much exposed skin as possible covered and as much woke statements and "jokes" slipped in the writing, not to mention the "..." conversation, and being upset at Xenoblade 2 and Persona 5 going the other way to the point of using the same glitched screencaps of characters clipping through walls...
I could go on even further. There's less and less of these games making it over, and I doubt reviewers gloating about this end result on twitter need you to underplay the current trend.
And remember just how much shit it got from nearly every gaming "journalist"? Developers/publishers simply don't want to deal with that shit anymore so they are relying on English-Asia releases, so if you want the game you can import it.
My, how could one ever forget about that.
Jason Schreier was so upset by the game he wrote an article how the artist, Kamitani, is a 14 year-old sex obsessed horny teenager, and how the game is sexist. For that matter, since it begs reminding, the traditional definition of sexism (not the one where "some animals are more equal than others" because some traits one is born with invalidate experiences of oppression, rape, etc) means "unfairly discriminating between how men and women are treated".
So the artist let the personal insult slip aside, and showed him art of muscular gnomes, you know, "objectified" males just as females were in the game (ah, the innocence of those days. Now males can't EVER be objectified unless their dick is prominently visible or throbbing from clothes. Which means never, considering console cert conditions. Sorry Nomura, you just weren't trying hard enough with the boys band FF15 you said explicitly was marketed to fujoshis.)
What Jason did was to try and bury the artist's career with a fabricated "homophobic" accusation, because obviously he was showing "gnome gay softcore porn" to corrupt him, "assuming" the good woke journalist "can only be gay if he's against those boobies".