Understandable to dip as the story releases and new tags are applicable, but the mass rating bombing because they don't like it, not because it's objectively bad quality, is shitty, imo.
So what exactly is good about this story then? What exactly is objectively good about it outside the art.
This is the main reason I don't lend much weight to Mangadex ratings in general. They're typically more a measure of how John Weeb feels about a series than strictly how well executed it is. Depends a bit on what kind of audience the series initially attracts. As such I've checked out plenty of highly rated series that I found dreadfully bland, and read plenty with mediocre ratings that I rather enjoyed. It just isn't very helpful to compare ratings across genres.
No rating system is perfect but it's useful for a general perspective of whether something is good or not. Whether you agree with the masses is up to you.
I remember the incest story that has the a similar rating as this story and I enjoyed that for its degeneracy despite the low rating (Until the ending that basically said you wasted your time enjoying it)
Or that one story that hit a 3.40 or around that despite the story just being misunderstandings the story
As far as I'm concerned this rating is fairly accurate on the quality of this story.