If you like to finger and go down on your mom and aunt, glory to you for not find that a sin..... It was sin that was the issue you raised right?
Any game that got a good story and characters have that as the driving factor. It doesn't need to be just about serve up one pussy after the other to ram it home over and over. There is plenty of games out there that have next to no story, shallow characters with hardly a brain cell to share between them, but make up for it in aimless lewd shit.
As for the content of the game, it's been standing quite still for a good while in regard of adding new content, but the game have been brushed up on, code fixed etc. If you check the steam forum for the game, you see the creator respond fairly fast to bugs and issue fixes. Imho it's a good sign the game being worked on.
There is games out there that far older than 4 year and not near completion. Work in progress is just that.