Colby Armstrong Hit on Saku Koivu

Here is the video of Colby Armstrong’s hit on Saku Koivu.  As you can see, it is a clean hit but does it violate an unwritten code that says you can’t hit a team’s star player (at least that hard)?

Wanting to eliminate the obstruction penalties in the NHL has the side effect of high speed collisions, is this good or bad for the National Hockey League?
All comments on this issue are welcomed and appreciated!