I wonder why you say that guro games are somehow shameful or ruin developer's carrier? There are lots of great guro games and normal people like them as well.
and yes for normies Guro = Horror. Happy guro= Horror comedy/surrealism. So no reason to catch any heat. You will catch more heat for incorrect portrayal of gays and transexuals in your game :)

You know the most famous guro artist 774 now is the famous mainstream artist too :)

Even made in that rpg maker they are not necessarily garbage but you need to make them meaningful and artistic, not just some fetish trash like mentioned above.
The problem is that most of them do not have any detailed guro content but rather rely on rough pixel images and text.
But if the game has good story it will be enjoyable not only for guro fans and it will not be limited to the tiny niche of fetishists who fap on samurai girls getting chopped in half LOL