The Whopper leads Burger King sales year after year and its a shitty burger. Being the best of a mediocre bunch ain't much to crow about, its just a testament to his reliability.
Kopitar's a top line center who routinely produces low numbers for a first liner, and its not because he isn't as talented as the guys with better numbers. He plays pessimistic, safe hockey. Fiala is balls out, attack at all times with VERY little regard to defense. His best season came with kids who weren't asked to match up with anyone, just attack the net as a second line.
Its completely different hockey and assuming Fiala is going to see the same results just because Kopitar is "better" that Gauthier isn't realistic. There is going to be a huge adjustment there that ultimately would be better served jump starting Byfield's career than struggling next to Anze.