It's not a terrible league. It's behind the KHL and SHL in the European hockey hierarchy, but it's hardly terrible. Barkov, Ristolainen, Teravainen, Laine, Barkov, Aho, etc., they all spend prime development years there and they seem to be doing fine. Pretty much all top Finnish prospects go the Liiga route. Obviously Virta is older and does need to get over to North America to take the next step, but he's in a league where younger players learn plenty about the game and come out pretty polished. The league isn't terrible by any stretch.