Nah I didn't forget anything. You are assuming this out from nothing. You presumptively don't consider the Giga amount of difficulty taking a strike channeled by 2 yonko whilst not standing in the best asset implicates and how he presumably took the whole thing with the explosion. Made a long case on that.
The Grandmaster displayed a level of offensive output that is flabbergasting, just thinking of the pitiful conditions he stood on. The defensive output is astounding when factored against typical Thunder Bagua, Ragnarok and weaker attacks. His reaction speed proved more proficient than G4 Luffy's against Dragon Kaido as the latter in one occasion seemingly failed to properly cover himself and I seriously doubt he didn't try I mean, no substantial reason to. Not to mention Zoro's insane attack speed and how Asura can possibly be much more effective had he not stood under those pitiful conditions but healthy ones. This is just part of my full argument.
I typed so many essays in the past about this matter, go read them all if you dare spending hours of your life.