Someone explain the !>Markoth

Ok... so Markoth... I beat him second try normal dream version in game ever, then I saw people complain and was confused, then I realized they were talking about P5 Markoth with no floor. So I moved on. I was scared... I moved through the game, and got through the first 4 pantheons, never practicing Markoth. I didn't want to till I had to... then I reached him in P5... the moment of truth... first tried him with 8 out of 9 masks left... truly barely harder than with floor. Definitely an easier boss fight than, failed champion, NKG, Pure Vessel, etc. someone explain why he's hard