Galibier north is much harder than CdF east. There's no reason for the group over the Galibier to be over 10 dudes.While this stage is arguably harder than stage 12 and has a more epic feel to it, I agree with the idea that tomorrow is the day for the man against man battle on the final mountain while stage 12 is the one for the potential tactical shenanigans. For TJV sending a bunch of riders up the road and making a huge attack on the Galibier might be a good tactic to exploit Pogacar's weak team but you can do that on the Croix de Fer just as well. However if it turns out that Vingegaard is actually up to the task of fighting Pogacar one on one, making an enormous effort to attack would leave him dangerously isolated. Imagine all their helpers are up front and suddenly Vingegaard has a mechanical in the valley after the Galibier.
That being said, I would still expect a decent battle. If Vingegaard feels good he can't wait for the last few meters where he is no match for Pogacar. Meanwhile if Pogacar feels good I'm certain there won't be a lack of entertainment.
Meanwhile, Croix de Fer is the climb where Kruijswijk crested with 7 minutes advantage and didn't even win the stage. On a HARDER stage than this year.