I think all those with/without stats are bit flukey expect for Val's. Those stats often beg the question of how a team could be better without their best players?
Similar to how Toews has better stats and analytics in certain areas than Makar, but he's not a better defenseman than Cale, and I'm not sure he's better defensively after the Cup win. They're similar levels defensively IMO.
The Avs can get by while losing offensive players, because they have other offensive guys that can step up, or by playing a more simple defensive style. They've done both.
But they can't replace Val's net front presence on the PP, or his puck hounding in the top six at ES, or his two way play without Landy in the lineup, and especially without Landy AND Lehky.