Are you sure about that? Radulov was on his last big payday and wanted to get paid -- I didn't see anything where Radulov said he wanted out.
It was purely a money play. Had the Habs paid up, I don't see how he would have taken the Dallas offer. He had spent a year in Montreal and chose the city cause he liked it, he found it to be a safe place for his family, etc.
Bergevin opened the door for a competing offer by playing hardball with him, when he pulled his offer. You'll remember how Dallas's offer came in only after Bergevin had vacated his. And then Bergevin put a foot in his mouth and followed it up with his "take it or leave it" comment and the loyalty epithet.
I don't think Radulov wanted out either. He wanted to be paid though and I don't think there was any question he didn't at least deserve it after the season he had, including the playoffs. Whether he was worth it or not is one thing, but at his age and given what he felt he was worth, he wanted to be paid.
I think also, on paper at the time, Dallas probably appeared to be stronger or at least more star studded up front. He probably also felt Dallas was closer to contention than we were. It's a wash now since neither made the playoffs last year, but just saying what he probably felt at the time.
However, I think it was more about the $$$ amounts that led Radulov in leaving. I don't think Shea wanted to leave Nashville either, but he wanted to be paid and the offer-sheet from Philly forced everyone's hands. Maybe Shea wanted to leave, but I suspect he was going to be happy in Nashville, but for the right price.