I love all the xG stats. I really do, but even they are lacking in that they are league averages. I agree that we need to lower it, but, three of the four teams we have played so far have names at the top of shooting lists. Our xGA were from guys with names like Draisaitl, McDavid, Barkov, Tkachuk(x2), Kadri, Huberdeau, etc.
I think it's sustainable.