Isn't it the opposite? It may be too early to tell but NATO is reinvigorated, Europe is once again turned back towards the Atlantic faction, Russia's economy is faltering, Ukraine is out performing what anyone expected militarily and Russia's army looks shambolic.
I have seen that video linked often in past month and it seems like Mearsheimer's biggest miss was how weak Russia truly is and how irrational Putin may act. If we expect Russia to fiercely defend its interest in Ukraine as IR realists then shouldn't we also expect the US to use Ukraine to twist the knife in the current Russian state?