While I do agree with you that that happens, on this case it isn't the first time this overpromises and doesn't deliver. This guy even has a reputation of promising yet abandoning projects afterwards, that's why people are mad.
The issue is this kind of bullshit hurts other hardworking devs. Before, you had one or other project abandoned. Nowadays, adult devs are getting dragged to this reputation of milking patrons and abandoning projects afterwards with no comunication at all. And when this happen with popular projects like this one it increases even more.
The thing is, this is kind of project where you can see the guy is definitely skilled at what he does, yet he simply doesn't care as long the money continues to cash in. Not to mention the lack of comunication, it's normal for people to get frustrated.
One half of the dev team is a borderline workaholic in that he works on this, another project of his own as well as contributes to several other games.... the other half his main project labelled as abandoned already after not even bothering to keep Patreon backers in the loop lol. Its a sad combo but they never said on either side this game would be their primary focus, we were well warned on that matter yet people invest far too much emotionally that this SHOULD be the main focus and that created the most issues because low and behold it gets few updates per year and that gets to them.
I dont mind personally no more anyway as the appeal of the game heavily diminished based purley on the game itself. Its a hot mess of complete 180 degree turns one update to another (slutty cocksure waitress who seduced you infront of you date which was appealing and hot is now denying she is actually like that), an MC who everyone has magically decided they wanna fuck (including the mom of the son he killed he just recently met... yeah how is that for pacing!), random side girls coming in droves all wanting said magical MC (including the neighbour on the very first weird and out of nowhere meeting of the MC) and some ridiculous plot points just to pander to kinks (here gamers, have a MILF character complete with child... but dont worry shes still a convenient VIRGIN so you can deflower her on screen yourself).
Im only gonna keep playing to see where the story goes with the daughters and if the three routes actually make much of a difference as the girls like all the side girls have been sabotaged beyond repair themselves almost already vs what was first presented to us on screen when it debuted. The naive daughter who seemed a blonde bimbo seems more like a seductress who knows what she is doing all of a sudden, the more girl next door mature red head with the level head seems the one who has most descended rapidly into irrational pure lust for the MC out of nowhere and the black haired one who hates your guts all of a sudden doesnt like when her sisters gets to spend time alone with you.
I dont always approve when devs go back and add more content to pre-existing stuff done previous and i know thats a common feeling but honestly i wouldnt mind an update or two just expanding what weve seen already to smooth out there daft pacing issues and actually attempt to develop characters before getting them to where they are now as its jarring as it stands. The next update could well be their biggest yet and good on them for that but if its more of the same of... well this? i cant even say im hyped no more in all honesty.