Devils and Colorado had guys who finished 1 and 2 in the hart trophy voting. Both Taylor Hall and Nathan Mackinnon had 90+ point seasons, Colorado also had Rantanen and Barrie at almost a PPG. While not expected (and the Devils are due for a pretty drastic drop off) no one should be surprised that Hall and Mackinnon posted the types of seasons that they did, they both went 1OA for a reason.
We don't have anyone on this roster capable of doing that.
Vegas had a half dozen players post career years. I think the likely hood of that happening here is even less likely than having one of our forwards have an MVP type season.
Teams that surprise have players that surprise, big time. We can use our very own Rangers as an example, they got into the playoffs right after the lockout when no one expected them to because Jagr basically broke every franchise record.
Take Jagr off that team and they don't sniff the playoffs.
I get your point on not making definitive statements, but using those teams as your examples is such a poor argument.