Id have to say its good to have , like you stated adds more impact. The biggest thing to me as some one whos read multiple VN , you want it to be be a story . To have impact and geowth as make commection to the character and story. I think aome people forget jist cause it uas h/sex scenes doesnt mean its only a sex game. Of course we as fans have some sway, though as creators and developers of this VN just make sure proud of the final outcome.
Ps. A good example to me of a VN with bad ends that has H scenes is like G senjo no mou. Or maybe like aaya no uta. Great in their syory and impactful in their bad ends/other endings