Yes he fainted to an attack from Killer that cut cleanly through his shoulders and caused blood loss, while
he was caught offguard. Whitebeard, when caught offguard, was pierced by Squard. Kaido was pierced by Kiku. Roger was executed by a bunch of no names. Durability usually doesn't come into play when the character isn't actively trying to defend.
Didn't use future sight due to being angry. Ran headfirst into a Thunder Bagua which knocked him out clean.
This is PIS ngl. Although arguments can be made that Ulti was trying to break Nami and Usopp's spirits by making them renounce their captain's dream before killing them.
He does it at times but you cannot call everything that doesn't fit your headcanon to be PIS. Oda is consistent for the most part.