That's a little harsh. But its as with opinions, some of them are open for debate. As a Rangers fan, and especially one from Norway, his stay here is always going to be a fond memory for me for many reasons.
Zuccarello has been part of the New York Rangers for 9 1/2 years. He has been this teams top point producer 4.3% of this franchises existance in the NHL, and a New York Ranger for 10.2% of the time Rangers have had its name.
Zuccarello is 37th on all time games played, 47th in all time goals scored, 15th all time assists for the New York Rangers. Only 25 players in this franchise have seen their name on the scoreboard more often than Mats Zuccarello, he joins them at 26th all time points for the Rangers, 37th all time (+/-) rating, 27th all time Game Winning Goals. He also sports a 50% shootout stat (that I could find online, but some of these stats seem outdated, but all say 50%) for his career, this would make him one of the best penalty shooters in the NHL.
For Norwegians, he is special. He is our only NHL star, and the one guy in the entire country that really brings up nationwide interest in the sport.
He took actual home town discounts to first allow the Rangers to re-sign Hagelin and keep the team intact, and then took another hometown discount to remain with the Rangers. The shot from McDonagh gave him a lingering brain injury that still follows him to this day, and is seen as consensus that had a very big impact on the Rangers cup chances that year.
He's been known as an agitator and have brough more than one cheer from crowd after going after people like Parros, Hedman, Chara, etc. He's been a fearless soldier for the New York Rangers, and ends his tenure here with his highest point production to date, and a letter on his sleeve.
But just a insignificant blip.