I'm not disappointed, I have said since the beginning, before he was even traded here that he was a D ideally teams would rather have on their 3rd pair.
I'm disappointing that the Rangers put themselves in a less than ideal situation. They likely had higher expectations. So they made a deal based on them, and now will either have to walk away or give a contract based on their expectations while being cognizant of what they already traded for him.
It's not like he or his agent are going to look at the Rangers roster and say, if you want to stay, we better sign cheap, they have other options and they gave up nothing for you.
He has all the leverage to ask the Rangers for the high end of what he would likely get by going on the UFA market. Which why wouldn't he, the Rangers are not going to sign him to expose him, so is he really going to sign in the time period between June 21st and June 30th, when he could just wait for July 1st and see what he may get somewhere else? So he can counter whatever the Rangers offered or at least consider the other offers, If he does I'd be pretty surprised.