That's not the point here. The fact that uke only knew BDSM when he searched it up online is the main concern. He doesnt even know how 'safe word' works.
"This is BDSM?" "Of all the the things it could stood for"
Criticize the character ≠ hating the plot
Author intentionally created the MC as dumb and naive (title itself tells u that). Pretty sure they'd be glad if someone felt annoyed by MC's actions. That means author's writing was effective.
My silly slanders towards are purely sarcastic, it's not necessarily disliking the manhwa.