You know, after now actually investigating and actually playing the non R-18 version for more than just checking medikits and realizing, that the loading screen images are not actual gameplay screenshots, I can safely say I got baited and I apologize for the confusion.
I thought, there were separate animations for some mutants - like shown in the loading screens, that the butcher doesn't eat them face first and clothed. I assumed that those animations were mechanic wise it the same as R-18 and the heroine would be disabled while the butcher can still attack with his non grabbing moves.
Since it appears, that every single one of those loading pictures was posed, a mixture of the versions doesn't sound great anymore.
My hypothetical dream was that there were multiple grab animations that vary if the heroine is downed or low on health and high health and still dressed(lewd on low health and non lewd on high health). But the second kind of animation doesn't even exist so there goes that haha.
My new dream is of a higher difficulty.