Markus Jais has a few insights on why the hoi polloi is reticent about picking up Scala. Much of the argument centers around the lack of documentation, blogs that are garbage, a nascient set of good tutorials, and Java programmers who think that if they can't learn something in an afternoon, then it's too complicated to even try.
Funny, but you could say the same exact thing about Struts 1.1, but it didn't stop that mess of a framework from permeating just about every enterprise application at the turn of the century.
Advice from the TSS editorship? Learn Scala: it scales in a way that Java never will.