Way to add the word "vicious" to my comment. You (or maybe someone else, I don't care who) said something along the lines of "you must play in an 80 or over league if I think it was a hit from behind". So really, all I see is said person making fun or people for thinking it was a hit from behind, then posting a video of him getting hit from behind. No one ever called it vicious, but hey, add words to prove a "point" if you feel is necessary.
You and others have argued that Zetterberg is at the very least partially to blame for the affair due to his preceding hit on Weber. This carries the obvious implication that Zetterberg's hit was of abnormal nature. Said implication is completely broken. Zetterberg's hit wouldn't even warrant a penalty, let alone the response it garnered from Weber.