That's simply your opinion. Logic would dictate that if a forward spent more time in the offensive zone and less time in the neutral zone or his own zone, he would see an increase in points. Someone scoring 130-150 points a year would see a pretty strong increase in offensive numbers if they played a more offensive minded game.
Nice snarky answer. For all the big offensive numbers Crosby puts up, he hasn't finished with more than a +20. In fact, when he won the Art Ross in '07 he finished with one of the lowest +/- totals in the history of the NHL for a recipient of that award. In '09 he had 103 points and was just a +3. Even the year he scored 109 points and led the league in goals, he finished with just a +15. Seems to me, if he's good defensively, with all the points he accumulates, shouldn't his +/- be much higher? Datsyuk was able to finish with a +41 in a year he scored 97 points. A +36 in a year when he got 87 points. Now comes the part where you say "plus minus doesn't matter", but those 20 seconds Crosby plays at the end of a penalty kill against a teams 2nd PP unit means more.
Datsyuk has 3 Selke trophies, good for 2nd all time. Crosby hasn't even been close to a nomination.
Please don't use +/- as an argument, it is a flawed stat, but if you really insist, Crosby has 21pts in 12 games this year and is a +14, Datsyuk has 60pts in 61 games and is a +19......what does that tell you? It doesn't tell me anything at all really, but based on what you are saying, it would appear as though Crosby must be much better defensively, right?
Look, no one is going to argue that Crosby is better defensively than Datsyuk (at least not right now). I will argue that he is just as good if not better defensively than Datsyuk was at the same age though. None of that matters though, fact is, Datsyuk is one of the best forwards out there defensively, Crosby is not one of the best, but he is certainly responsible and continues to improve that area. So, Datsyuk gets the edge there, but the edge he has there is much smaller than the edge Crosby has offensively.
The other problem is measuring defense is very difficult. Datsyuk probably gets more credit than he should defensively for his takeaway stats. But how else can you measure defense? +/-.....yikes, I hope not. I wouldn't look at penalty killing either because Datsyuk was like the 5th option on the Wings but still one Selke. The Pens started to play Crosby there, but will likely hold him back quite a bit until he gets back into the lineup for the long term. The big issue with puting stars out on the PK is risk of injury.