I agree on that. I, like I suspect many, would like to see Bernal approach his best. That would be an inspirational comeback, even if no match for the big two.
He won the Giro in far from optimal form after abandoning the Tour the summer before with a back injury. I don't know what his level would have been if he'd never been injured, back and crash.
Bernal won the Tour at a young age with a climbing level that was the best in the world at the time, and he was ascendant every year before that. He could have kept improving his climbing and also worked at his ITT (which was not bad).
Granted, the 2019 Tour and 2021 Giro weren't the toughest GTs in terms of competition, but you can only beat who's on the start list.
All that said...he's clearly a step or two below his GT winning level, and I haven't really seen indications that he'll get back there, quite decent performance in Camino notwithstanding. I'm guessing the best he can achieve is fighting for podiums in week long stage races, which in itself would be a triumph.