Pogacar clearly did a suboptimal climb with Belgium pacing slowly at the beginning. Absolutely nuking the bottom like Seixas is not optimal either. Seixas also lost a bit of time in the flatter section with Jorgenson in the wheel.
Irregular climbs like this are seldom paced consistently, which is why I give bonus points. I am reasonably certain about the watts Seixas pushed, so it was a phenomenal performance regardless of the exact adjustment.
He obviously was on a great day, let's see if he can repeat it on a longer climb. Carapaz also did a one-off performance like this in the Giro last year that he could not repeat (yet).