I'm sure this has been brought up before, I'm just wondering why is it that Karlsson or Burns get nominated for the Norris every year over more defensive focused guys like Ekholm? Is it because points are an easier way to determine who is better? Even if it is only offensively?
Because as much as we've come along way, measuring one's defensive prowess is still fairly subjective. A major part of gauging offense is simply looking at points. There is no subjectivity with the number of goals and assists one scored. Historically, defensive prowess had as little as +/-. Now we can measure a lot more, but there are so many stats, it's still very subjective in how you interpret them all.
And quite frankly, some of the stats are still fairly new to the NHL, and phenomenally inconsistent. Things like takeaways/giveaways/hits, etc, are so inconsistently measured, that using them to compare players between teams is rather fruitless. They're so bad, they become near meaningless. You can maybe use them to see what a player does in relation to his own team, but beyond that, they're really not very good.