On one paw I get people's concerns about just how widespread and accessible NSFW stuff can be because sites and people could utilize things that could borderline between Safe and Not. This most often those stands to be more subject to interpretation. Anything clearly NSFW should not be made easily accessible for those who are not ready for it.
As far as Sileo is concerned with what I see, the novel does not focus much on NSFW even though it has it. The NSFW is made as a reward rather than freely given for little to no reason. The story focus on relationships and bonding first. This is why I love it so damn much. It feels natural.
Some discomfort can be expected, but so long as it does not go as far as alienation, which this does not do at all. If anything, Deigo route had one of the best ways to resolve what had actually been a complex situation beneath the surface. It is also why I am still so curious in the after story too!