Not that I'm trying to say the translator shouldn't do whatever they want, because they can, for any reason or no reason at all, no justification required. 'Cause they don't owe me or anyone a thing.
But, if netorare is such a deal breaker, it seems odd that this has been translated for so long. And that people are so up-in-arms about it this far in. Because even though it hasn't happened, it's always kind of had these looming shades of it. Setting up the plot point that there are other guys that could treat these girls in the same way as Koutarou. The part where you have those three girls resisting giving themselves to King / holding out hope for the MC's group to return. There's even a brief delusion scene of the girls in MC's party plus those three stripped down in a netorare scenario, exposing themselves to King. The part where MC's party gets captured briefly by those guys while they're out searching for food, and the guys were about to do something like that but get taken out instead. Hell, there's even reference to netorare immediately at the start of the series.
Like I say, obviously do whatever ya like. Just strange that people who are bothered by it are still reading at this point with so much foreshadowing of netorare themes. My prediction is that netorare of Koutarou for at least one, but probably more if not all of his girls is going to happen sooner or later. Then he'll go get them back, and ultimately win in the end.