I'll throw in my 2 cents. The it's non-canon argument doesn't fully work.
Let's take a popular comic characters like Batman, Spiderman, Superman or Wonder Woman. There is the core version and other versions set in their own contained universe, think the comic book vs the movie versions as an example. Even though they are their own separate characters, they can still reflect on the perception of the character overall.
If you approached DC and said you wanted to do a comic with an alternative version of Wonder Woman where she becomes an absolute whore and goes around getting into gangbangs, even if there was an audience for that, that it could make them some profit, they would in no way allow it because they know it would reflect on Wonder Woman overall.
This is an interesting analogy. Protecting a brand in order to preserve an audience should be a key consideration for creators.
Just speculating here but, perhaps the "non-canon" NTR IS the brand? Hear my out: imagine watching a "canon" version of the film Groundhog Day. You'd miss a lot of funny scenes because they "didn't really happen".
With Power Vacuum one has the option to avoid these scenes, just like one has the option not to play the What Ifs... but like a speed-run of an RPG, they may be missing the point?
Granted, humor is subjective, and the NTR-themed comedy won't appeal to everyone (or even most people). The point is mainly the humiliation of the females, not the cuckolding of the main character. Those with fragile egos and those who self-insert may not be able to understand or appreciate such humor.
But circling back to your point: perhaps those themes ARE the brand, and the option to avoid them is like the option to get a salad at a burger joint, rather than bemoan carnivores for being degenerates or something.
I think it's smarter to cater to your "paying customers" (patrons) than to try and appeal to everyone by being inclusive and bland. Hell, if DC Comics could remember that maybe it wouldn't be a shadow of its former glory. Just a thought.