You can't think much of Pogacar's capabilities if you sincerely believe that this is the absolute best he can do, and that he and UAE judge his efforts against anyone other than the best.
There's no amount of revisionism or goalpost shifting which can handwave the inexplicable.
Pog's performance was in-line with his best ever ITT performances. There's nothing more he can do when he puts over a minute into Wout van Aert on a hilly 22.4km ITT. Unless you're saying Van Aert is a bit sh*t? I mean what's the metric here? Vingegaard looked like a pro among cadets. He made the Belgian national time trial champ (& someone regularly named one of the best in the world in the discipline, especially on this type of route which favors his all-rounder abilities) look rubbish.
2:51... i.e. that's the gap back to WvA... who finished third (with an average speed of 37.913). Vingegaard did 41.227!!!
I've never seen anything like this before & unless someone was watching cycling back in the 1950's & early 60's, no one else has seen it either. So no, Pog can't do any better.