Those same rules apply to every single goalie in the leauge.
Things we know:
- If you look at a goalies' save percentage after about 6000 saves, that is likely were they will sit for the rest of their career.
- Moving from team to team doesn't effect a goalie's save percentage.
- Multiple good goalies put up good numbers on awful defensive teams every year.
Of course every shot is not created equal, but in general scoring chances mirror shots.
Even if you want to say it is all about the team, how the heck have Bobrovsky, Reimer, Dubnyk and Miller posted such good numbers this year. Their team defense hasn't been very good. Why do starters generally post better numbers than their backups?
Also, can somebody please make a list of very good goalies who year after year after year post bad numbers? Does this list exist?
Take a look at the career save percentages of active goalies:
http://www.hockey-reference.com/play-index/share.cgi?id=/BT4Tc
The good ones - regular Vezina candidates - are at the top.