No, he won't. If Pogacar drops everybody, it means his rivals are tired so they will not climb Poggio much faster than him. MSR is a very easy race so he can definitely race 22 km solo without running out of energy. He is used to 40/50 km solos.He may stay ahead of the peleton on the flat section indeed but how will it affect his level in the finale? (Poggio ascent + descent + finish). He will surely have less in tank than his main rivals there and will be vulnerable. Well, maybe we will see what will happen in 3 days if he tries!