This is a purely hypothetical, loaded conjecture and presumes there are no other scenarios to consider.
Weird, Perron was also a drama queen [white skates? Lots of 1-on-3, 1-on-4 offensive play? Lots of ignoring coaching instructions?] and a perennial playoff choker here. And, elsewhere after he left here. His goal in the 2018 playoffs came with him literally sitting in the net and having the puck go off of him. Going into 2018-19, everyone's expectation was "nice guy, might put up regular season stats, ... going to f***ing disappear in the postseason."
P.S. - that time between when Perron left and Oshie left? Same head coach for the Blues.
Oshie must have sucked at killing coaches after Perron left.
I'm just going to stop right here.
* Montreal got 2 Cups and Boston got a Cup playing "a[n] expansion team in the finals." I don't see anyone calling those 3 Cups illegitimate.
* Vegas at 107 points was
very legitimate competition. The Golden Knights were light years better than those Blues teams that got to the Finals, who couldn't go even .500 against the O6 teams in any of those 3 years.
* Washington had to come back from 0-2 at home against Columbus, had to slay their perpetual playoff nemesis in Pittsburgh, and had to come back from down 3-2 by winning at Tampa who led the Eastern Conference with 113 points. Let's not pretend they got there by beating Buffalo, Ottawa and Montreal and then ended up with Arizona in the Finals.