I won't tell you to like or dislike this manga, but I do find it odd that you'd gripe about it specifically. I'd have expected that, if one wanted to gripe, one would select either
a wholesome manga that's lewded for no reason or
a manga that's not shy about the exact relationship that the main couple has.
I mean… yes, a cursory search reveals that the author is very much into /ss/, which in turn must mean that the /ss/ overtones herein must be completely deliberate. And, yes,
for me personally, said overtones are a plus. (Sue me.)
But you seem to be implying that people who claim to like it for wholesome reasons must be lying, and I really don't think that's the case. The reason being, that, well… commenters who have non-wholesome reasons for liking something aren't usually shy about it. Plus,
if nothing else, you have to admit that this manga takes care to have enough plausible deniability to not offend people who are trying to not be offended.
I mean, I know what it's like to purposely push away a manga's non-wholesome elements in order to enjoy its wholesome ones. The biggest example for me was
Kodomo no Jikan, and
sweet Chiyo-Niggurath did it take effort. But I did it.
So, with that said, the exception you've taken must be that, uh… people aren't reading into this as much as you or I are doing? Good on them, I say! Their innocence is a net good for this world.