That's where I have to draw the line.
Frankly, given his deployment, he doesn't have great defensive numbers. He's on the wrong side of CA/60 and rel despite only starting 30% of the time in the defensive zone. Middle of the pack on his team there which isn't great given Dallas has d-men being specifically deployed to eat some of that. Of greater problem is his high danger corsi against, of which he's the worst regular defenseman on the team (only worse are Oleksiak--gone--and Methot, barely played). Again, the RESULTS are there, but given the quality of shots and volume of shots given up, he's not playing stellar defensively. Despite starting away from the d-zone 70% of the time, he's the worst on the team at preventing high-danger shots against.
Again, I have him as my probably frontrunner for the Norris going into the break, so it's not that I'm not recognizing his overall impact, but let's not overreact to people calling him bad defensively by suggesting he's very good defensively.