Why Genchiro felt easier than Sh*t Guardian Ape and Corrupted Monk?

I watched countless videos of fighting Genchiro and thought it would take me at least a week to beat him since my parry reflex is very poor. It took me maybe ten tries, and that too only when I was not too greedy. I beat the hell out of him using Living Force and Mikiri Counter. It took me more than three days to beat Corrupted Monk, O'Rin, Lady Butterfly, Seven Spears and today the Guardian Sh*t Ape (I just waited for him to throw sh*t at me, so that I can counter!). I guess the game is different for people with different skill levels.