I understand casual-type fans getting all excited by "long counts" and getting out stopwatches and whatnot but any hardcore/nerd fan knows these are fine line decisions which happen every single week.

A different ref would've waved the fight off instantly when Fury hit the floor, another stopped him from getting up, another stopped it when he got to his feet, another maybe wave the fight after he reached 9.

Not one of those decisions would have been wrong/unjust, it's just Reiss made a "great" call (and had Fury been knocked unconcious Reiss would currently have calls for his head).