Thallis
No half measures
Yeah, for guys at the bottom of the lineup.
Your starting goaltender plays 60 minutes a game. There's no context where we can't compare him to a 1C or a 1D. He's arguably even more important in a vacuum.
There's no other position where you would look at even and say that it's average. It's replacement level. It's significantly below average.
The biggest misconceptions with analytics is that 1) even is average and 2) replacement level is average.
Do such players exist in the NHL? Absolutely, because there's four line and three pairs. There's one goaltender.
You can bring up context and outliers, and just not agree with what the stat says, that's up to you. Objectively, a GSAx of 0 is terrible. It's just about sub-NHL. About 60 goaltenders are going to outperform that every year.
60 out of how many goalies? Once you get the answer to that, ask yourself if you think all of those players with less than 10 games would be putting up those same numbers getting regular starts in the playoffs. For as confidently you speak about this, you haven't done even the slightest due diligence here.
In case you were wondering: the year in question 2019 had 23 goalies with 30 or more games played as positive GSAx. 48 goalies hit that GP mark that season. So, no, you're talking out of your ass without understanding even what you're arguing, much less the things beyond it like the problem with public xG models, standard deviations, or variance due to environment.