What he is trying to portray is a couple opening up their sexual horizons and exploring a taboo and exciting kink together while also staying realistic. Its not realistic to suddenly make MC or Laura go into debt and start getting blackmailed so that Laura has to become dependent on some man to pay off her debts, or for her to start getting blackmailed by guys she has sex with.
Differnet bulls give you different scenarios and situations for Laura to find herself in and excite MC, different oppurtunites for depravity, they behave differently with MC and Laura.
The Dev does not want to create a sense of dread when playing this game, thats the opposite of what he is going for, hes said so himself. There's still plenty of kinks to explore, threesomes(boy and girl), creampies, Anal, one night stands, BDSM, cosplay, roleplay, exhibitionism etc. The list goes on, there doesnt need to be damage to a relationship for something to be exciting, if thats what you need to enjoy this game, then its not for you, simple as that.