That’s how statistics work. You’re talking about the probability that ANY one of 100 players winning ANY one of 10 titles, vs the probability of ONE specific player winning ALL the titles in question.
It’s not crazy at all. The fact that you think it’s crazy is a testament to the big 3’s...
I guess it's a rite of passage for any good player to lose to Isner and feel like "wtf, I'm such a better player than this guy. He just won because of his serve"
Might as well get it out of the way early!