Pretty rough stats for Kuemper.
What this essentially means, is every ~4 games Kuemper is allowing 1 goal more than expected.
That's even just for a breakeven, 0.0 Goals saved above expected, which would still be in the bottom 1/3 of starting goalies. Honestly the goaltending we have gotten this year has been god awful. I know people around here are being so quick to throw the entire team under the bus and write them off as not even cup contenders anymore... But the face they are 12-7-2 with goaltending so far below average is actually pretty remarkable.
If anything I think they're kind of showing how good they could be if the goaltending would just fix itself. If we had league average starting goaltending right now right around Fleury/Binnington, we'd be allowing 1.5 Goals less every 100 shots or about 1.5 goals less every 4 games.
That's a huge difference, huge.
EDIT: Another point to make about that. Look at the other goalies that are at or below that 0.0 mark. Look at the records of those teams. Seattle 9-13-2, Arizona 5-17-2, Buffalo 8-13-3, Vancouver 8-15-2.