Interesting. Duchene's a competitor, no doubt about it, and I'd take him for his word.
When practices and game day skates start taking on that tone, I lean toward scrutiny of the coach. Given the talk about the current Frolunda coach(/GM), the apparent likelihood that he'll be replaced sometime in the near future, the performance of the club, and high-profile public statements like Duchene's, it's not unlikely that the coach has basically lost them and needs to sit back in his GM chair and put someone else behind the bench.
But yeah, for anyone concerned with Collberg, look at it this way. Neither is lighting up the Allsvenskan but for two snipers, Collberg has 1 less goal in half as many games. I wouldn't read too much into assist totals especially since Collberg is the more well rounded of the two.
And of course Collberg has been much better on the national team.
So as much as this news isn't about Collberg, it does consolidate that he will have an important role in the WJC.