People hate this chapter because it confirmed everything we already knew about the mangaka, his self-insert MC, and unironic fans of this series themselves: they're all so deep in their self-loathing woman-idealizing incel hole that having the occasional NTR fantasy is just an everyday fact of life.
I had dropped this series for being trash more than 100+ chapters before this one, but #218 brought me back with a hunger. Not for the story, not for the characters, but for that delicious schadenfreude. I'm not here to find out where this narrative goes. I'm here to watch just how low the fans will allow themselves to be dragged before they can't bear the self-reflection any more.