The way I see it is for many of us it is nothing new to talk about. The UI of the Stratum is simply that of the E2DL and similar witha third level in between (aren't the firefighter lights like this?), the body is just about the same as a 6P with new styling, and the reflector/LED combo is just like all the others Surefire recently released.
So partly there is little talk because it doesn't offer any new features we haven't seen before in other lights, doesn't offer attractive pricing like the 6PX and G2X, and is mainly a culmination of other parts we've seen before. For most of us who have been Surefire collectors for years, the Stratum comes out like a big yawn: oh, a 3-level clicky 6P...
Not to say that the Stratum isn't very good or without merit, as it certainly fills a much needed niche in Surefire's lineup, but theres nothing "new" to talk about.