Fair enough. That's why they have shot against totals.
Last year, Carey Price had 1828 shots against with a 0.927 SV PCT., so he let in approx 133 goals.
Budaj had a 0.908 sv PCT. on 615 shots in sheltered minutes.
If he played as many minutes and had as many shots against, with the same Sv Pct. he would have let in 166 goals.
That's an increase of 25%, even worse than the inverse!
And it's very likely his sv PCT would drop as he played more games and the other teams keyed in on him.
Your point about his SV% dropping with more GP and teams keying on him is conveniently ignored by these guys.
Goalie A playing 62 games and almost every important match up.
Goalie B playing 20 games with some easier matchups.
Their stats are not directly comparable simply due to the nature of being a backup compared to being a starter and having teams study you and you shouldering the bulk of the workload. Not to mention things that are specifically identifiable like the team playing better in front of the back up when he's in net or the back up playing easier teams.
Even if the stats favor the backup, you can't compare them directly to the starter. It's a flawed comparison. You can't extrapolate those stats and assume they'd remain constant. Playing once every 2 weeks is alot different than playing 6-9 times in that span, all season.
Not to mention the real world example we're seeing unfold in front of our eyes with Talbot. It's noticeable statistically and through the eye test, yet people sit here and want to make baseless arguments and flawed comparisons. It makes no sense.
