I mean Murray led them to two Cups the years before with a .923 and a .937 sv%, this year he had a down year with a .908. Meanwhile Fleury's play took an absolute nosedive as soon as the Cup Finals were reached; his poor playoff play isn't something new for him either
https://www.sportsnet.ca/hockey/nhl/analyzing-fleurys-performance-stalled-stanley-cup-final/
Well yeah, a goalie who's respected is better than one that isn't. I don't necessarily think that it's a must have in a goalie though, nor do I think that a goalie being respected is more important than any other important player being respected