I can buy the idea of Suter and Parise not staying in touch if it weren't for technology, but remember that besides the 90s, basically all the hockey players knew each other anyway because they were all mostly from the same regions in Canada. And in addition, do we really see that many guys leaving their teams? No. It really doesn't work that way. Martin St. Louis left Tampa for a myriad of reasons but I don't think any of them had to do with the rise of social media or cell phones - his family lives here and he wasn't put on the Olympic team and those were reasons enough for him to want to leave. Kevin Hayes was a free agent and left Chicago for lots of sensible reasons and this was a thing that was done before this stuff was popular.
We're not seeing this sort of thing become a trend. People like to stick with their team, still.
May be true. Although, indirectly (and I agree, maybe this is a stretch but it's worth noting), someone like Martin St. Louis (in 2014) is more prone to hear about Ryan Callahan's contentious contract negotiations going into the trade deadline. It's being reported on a daily basis with feedback and opinions all over the "Twittersphere". The progress (or lack thereof) is making daily headlines suddenly in this day in age. The world knows when Callahan's agent walks into MSG and what his mood is going out. Someone like MSL (or his family or his agent) are all tuned into it as we are.
Whereas the details surrounding this stuff may have been much more opaque in the 90s, every little factor leading up to his trade request was right out there in the open, for him and his agent to look at and react to.
He has a guy on the inside in Brad Richards who he can shoot a quick text over to talk to Glen Sather. And, like you said, the "Olympic snub" situation comes up, and MSL/his agent already have the whole situation surveyed and figured out a week before the trade deadline.
I'm not saying this trade doesn't happen in the 1990s. I'm just saying it happens a lot more easily and directly now, and almost without any qualms on MSL's part. It's almost a new-era form of collusion at the player-level, although there is no paper trail to investigate, and we're just satisfied with chalking it up to "people are more connected now".