fair its why i dont mind some of them having light combat im just not a fan when they have these huge grindy battles, personally i think the best way its been done is that some devs will make these fights but then theyll put in special weapons that one shot enemies to avoid the grind if you want to.
Or make the erotic contend interact with the RPG mechanics, like changing classes or new attacks, getting items/new maps, etc, for example Engraved Pleasure has many erotic elements integrated in the gameplay and the girl gets new skills depending on her corruption level.
There was also
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where the girls starts giving priority to the netori guy and heals/buffs him over the MC during battle, stuff like that makes things itneresting in my opinion.