No reason to overreact.
Vingegaard attacked, so that is one indication that he did feel good. I don't know how hard they went at different points in the climb, but the gap was most certainly much bigger than the actual strength difference cause Vingegaard tried way too hard to close Pogacar down.
Instead of a rerun of the Tour last year, it's like a rerun of last years Tirreno. But I still think Vingegaard is better than this time last year.
On to Col de La Couiolle. Both have reason to attack now. Vingegaard for GC places in first place. Pogacar because yolo reasons.
Sure, overreacting regarding the performance isn't called for but IMO it does raise a very interesting question about the TdF 2022 & Granon in particular. Basically reopening the debate from last year, i.e. (which I'll paraphrase) "was Jonas Vingegaard much better than Pog intrinsically speaking in July, or did Pog blow himself up with tactical mistakes?"
I think the people who say Jumbo needs two leaders to beat Pog in the TdF now have a valid point. I also wonder what Jumbo's internal data showed regarding the relative strength of Vingegaard versus Pogacar right here & now in early 2023. I mean what we saw on the road was a classic example of a rider going hard with an attack before blowing up, something he didn't even need to do because he was ahead in GC.
If Vingegaard was on the fence regarding his form, he probably would have played it safe (i.e. if Jumbo believed he was not ready yet he would have been more conservative). But that's not what happened, i.e. he went in all guns blazing with a massive attack (almost with what appeared like his own 'yolo' reason).
It's like he thought he had way more power in his legs than he did.