It's pretty much what should have been suspected, he wanted more for his UFA years than the Rangers were willing to pay.
He was not going to get a larger arbitration award than the contract the Rangers ended up giving him for his last RFA year due to his limited amount of NHL games played. Finding comparable players with comparable NHL games played who have a larger contract for their last RFA year is near impossible as by that time most players have already played far more games.
The only alternates were to work out a one year deal and see where it goes from there without the animosity of an arbitration hearing, or have the Rangers pay more than they wanted, or have Zucc settle and sell his years for less than he thinks they will be worth.
Apparently no compromise could be found. No real reason to be upset with it. If he proves to be a key player going forward, one the Ranger feel they must retain, the Rangers will have to pay more towards his terms, if otherwise, Zucc will have to lower his demands if he wants to stay.
Business as usual.