At least I do not falsify history or even ignore completely the overall narrative of time and change as I suspect most of the Finnish fandom here is doing: they do not for example see how the now assumed 'golden generation' fits into the big picture. Because this recent golden generation does not exist if you count anything else in than those beyond horrible age classes.
If if if. If a cow had wheels, it'd be a milk wagon.
You can come up with whatever ego-boosting metrics that supposedly "prove" superior understanding, but in the end, the supposed "big" picture is limited exactly where we choose to place the frames. There might be more to it, but I see nothing wrong with measuring overall success by how a player supposedly does in two arenas - the NHL and the NT. A player with no accomplishments from either is necessarily not a bad player, and I'm usually one of the first to jump in a player's defense if I think he's being judged hastily, but a player who does have accomplishments from one or preferably both is so often a good one, that it still works as a de facto metric. And if we have plenty of players who do well under that metric at the same time, it's perfectly acceptable to perceive it as a "golden" generation. As the situation is right now.
In fact, even pro coaches agree. Let's say there's a major international tournament and the coach has a choice between a full-time NHL goalie who may have one decent season under his belt and an accomplished, seasoned KHL goalie. Which one gets the starter nod?
And btw, I happen to think that the gap between an NHL player and a solid Euro league one is smaller than most people perceive. Still I see nothing wrong with people having preference to NHLers and using it as the dominating metric.
Some bash Lehtonen because he plays in a poorly defending team. I do not. Some praise Rinne because he has always benefitted from a great defending team. I do not.
I think both are world class goalies in their own right. Only way to say which one's better would be to compare them in a total vacuum, and that's sadly impossible.
And as of this moment, the next crop of Finnish elite goalies to break into the NHL big time (and thus, the "future") are somewhat younger than Rask, but not so young that they'd still be part of the junior machine. Apart from Saros and likely Korpisalo (who's another big, future elite goalie but not a junior phenom), we can't really say yet which ones of them will eventually make it.