You’re definitely right. A lot of it boils down to usage. Guys like Skinner and Henrique playing on worse teams have gone from top 6 mainstays to playing 2-3 minutes less per game in our bottom 6.
I suspect you’re right that the same doesn’t apply as readily for goaltenders.
When it comes to goaltenders, IMO it comes down to how you define "better" or "worse". If it's purely SPCT or fancy-SPCT (ie GSAA) without actually
looking at context (ie errors), then it's tough to say.
Blackwood could go from San Jose, who are hemmed in their zone most of the night, getting peppered with 35 random shots, plus 3 breakaways and 3 two-on-one breaks coming from o-zone breakdowns... and he let's in 4. He stopped all of the 35 random shots, stopped one breakaway and one of the 2-on-1s.
Then he comes to Colorado, where they are the ones hemming in opponents for most of the night. He gets a lighter workload of 14 random shots, plus 2 breakaways and 2 two-on-one breaks from o-zone breakdowns and he lets in 2. He stopped all of the 14 random shots, 1 breakaway and 1 two-on-one.
Same-same right? Except in one scenario he's at 0.902 and the other he's at 0.888. At least the fancies
might pick up the fact that in Colorado he stopped 50% of the odd-man rushes, and in SJ he only stopped 1/3 of them (if that fact doesn't get washed out stats-wise by how the fancies rated the random 35 shots)
The point: On the basis that the pucks bounces over sticks at blue lines for odd man rushes on both good and bad teams, playing for a good team can sometimes be more punishing (stats-wise) for goalies.