I don't think theyre overrated at least not most of them, theyre super popular for a reason. But we all have different tastes. HS tutor has lots of potential but the bad english really put me off, its not just typos but just the overall writing with words missing or in the wrong verb tense, like "you dum son of bitch". I havent played since 0.7 so it probably improved
To explain why I find this games overrated will be too much offtopic, so yeah, lets stop on the thing that to each their own.
As for HS tutor, well, maybe for native speaker it's an eyebleeding thing, but I found his writing funny. Yes it can be wrong with grammar and phrasing, but I laughed pretty much loud when the MC was fucking his sister at night, while her friend was in the same room and heard all this, she said: -They fucking maniacs!,- and her face expression was mixed with horror and surprise, lol. Yeah she probably should say "lunatics", but this way was funnier. Pretty much realistic reaction for a porn game