In fact Harley has been used very sparingly against top lines and little PK time either. He's been fine, but hasn't really done much heavy lifting.Your calculation significantly inflates the value of Harley's defence. He isn't more valuable defensively than Heiskanen. The fact that Dallas gives Heiskanen more ice time and in more important situations is enough to show that.
I don’t necessarily think he is more valuable defensively- I was throwing him a bone because there are a number of stats out there that paint him in a good light.Your calculation significantly inflates the value of Harley's defence. He isn't more valuable defensively than Heiskanen. The fact that Dallas gives Heiskanen more ice time and in more important situations is enough to show that.