I don't trust or take Colorado's goaltending seriously at all. Francouz really made it was too interesting in a few of those games despite a sweeping (literally a sweeping) victory.
If you swapped goalies for at least 3 of those games (including game 4) I'm pretty sure Colorado still wins with Mike Smith and Edmonton still loses with Francouz. Even in his shutout game they played incredible in front of him. That was their best game of the series. Game 3 Francouz let in more bad goals than Smith and I think he faced 13 fewer shots that game than Smith did and he must have faced 15 or 16 fewer shots than Smith did in the game he had the shutout. I'm pretty sure they both had the same identical save percentage of .857% for game 7, but Smith faced more shots and gave up one more goal because of it.
The shot differential in that round was a bigger difference than what goalie was in net, that's for sure.
I take Kuemper seriously, but I don't really trust him not to get hurt again (he has trouble staying healthy) and I wouldn't be shocked if he has to pull himself again for loss of or impaired vision.
With the long layoff, I highly doubt Bednar gets cute and goes ''Well, he won the last round for us, so we're gonna start with Frankie''. If Kuemper isn't starting game 1 then he's totally not healthy.
I even think Ingram in round one for Nashville had a save percentage right in the same area as Colorado's save percentage that series, but David Rittich's 20 minutes of terror was enough to cause a significant difference in team save percentage for the entire 4 game series.
That said, I still like their chances a lot.