Personally I'd doubt it has anything to do with Traverse and performances there, usually these deals have been in the works for a little bit.
For whatever reason the Rangers are stockpiling D to some extent which honestly leads me to believe they're not particularly confident in the players they have. They've got basically 3 actual NHLers (Skjei, Staal, Shattenkirk) and a bunch of guys with question marks (Claesson, McQuaid, Smith, older prospects like Bigras and O'Gara), and young players that may or may not be ready or may never be (ADA, Pionk, Hajek, Lindgren, Gilmour).
That's not particularly confidence inspiring. I think there's going to be a lot of "throwing this big bunch of crap at the wall and seeing what stinks the least"