Don't get me wrong I don't disagree entirely.
Just one point I want to make, that I think most people here miss.
People that like NTR, also do enjoy other content.
I don't like too agressive NTR, but If it has well made NTR I do enjoy that content as well as the rest of it.
You're categorizing people into two groups.
NTR and Non NTR.
Its not white and black like that, no person in the world is that simple.
People enjoy a wide array of things, keep that in mind.
I fit on both spectrums myself.
In the audience point of view, I do believe you're correct because people are fast to say NO to NTR instead of reading the rest.
Or even look into it to check if it is optional or avoidable.
Indeed, but those that do like this content already, aren't coming here cause the NTR tag suddenly got added for a single bad end.
As they likely would have already been playing it.
But yeah you pretty much sum up my point at the end there. Some just avoid it altogether so they don't accidentally happen upon it.
Another thing is you will have to wait longer for content because the dev has to make twice the amount for both routes and such.
Which is likely a problem, since they are likely the ones the game aims for.
I would almost say that with certainty because of the crossover with Niichan, who's games are all about the wholesome shit
(yes one starts off with a tragedy, but shows none of it visually, and is MCs past, not content for people to come to the game for).
I find when it comes to the content I actually like when it has optional routes for NTR, the quality of the content that isn't NTR isn't as good as games that are dedicated to it.
e.g. romance game that has optional ntr may have the characters be overly slutty as a result, which doesn't mesh well with romance.
A good example of this is roundscape, where it has "harem" while you can stop them from having sex with others, you still have to go through great efforts and grind to fuck them, while they will still be throwing themselves at any dick they can find, and basically being whores for everyone but you, since you have to romance them. But you can stop them from going the whole way... so it is "optional"
Very few devs ever do a good balance.
And with the few that do, fall into the trap where they both sides aren't getting enough content.
Or they have to update so infrequently because of how much content they are making. (the too many routes trap).
p.s. I really like how you format you comment... so I am stealing that.