Lets see what happens. And while it is not the same as playing Nadal at Roland Garros, understand that Thiem is a better clay court player than a HC one. Thiem started to look really flat towards in the end of the fourth set against Zverev, had he slipped in that tie-break I don't think he would have made it. He has put out a lot of mental and emotional energy the past two rounds, and now he has the AO GOAT. I like Thiem also, but no chance he wins it if Djokovic plays his best.He might win but he wont thrash thiem. No chance. Not unless thiem chokes and if he did he will never win a Major.
I agree its the hardest challenge on HC to beat Djokovic. But its not the same as playing Nadal at Roland Garros and thiem has done that twice now in the final so that experience will make him a lot tougher i should think.