2 possible reasons
1. Maybe they did that because they want to compare the sex between the NTR guy x girl and the MC x girl, If the sex with NTR guy is better, then you already know. Believe me, Non-NTR Fags are more selfish than NTR lover, It suits their personality in the game that they don't want to share their (every) girls even though it's really not their property
2. Idiots are doing it on purpose to piss and discourage NTR DEV so that they will not continue anymore thinking that majority of the people don't like ntr, Dev will lose supporters,. IDK maybe they just hate NTR so much that even though thread has an ntr tag they want to shit on every ntr lover's fetishes
No matter what the reason is, I agree with
leonhart025 and we are on your side