Granted; a microbial assessment is better than the idiotic NPK assays done.Come on now Tim. A local casting producer using Cornell to assess the microbiology in his castings is not diddly.
As for the red wigglers I source castings without insects that are pure wiggler castings. I addressed the statement years ago in a tremendous amount of diaries.
People cashing in because their market is grossly ignorant is BOS's value add. Not different than bottle companies but at least it focused on organic production. Expecting BOS to meet an already existing measure of quality is not unreasonable, but instead offers them a chance to reestablish their value add on excellence not just fluff.
The point about red wriggler vermicompost is that they do not present as pure castings; e.g. individually separated casts - poops. In their optimum environment their poops are small and stuck together, kinda gooey. European and African larger worm species do present castings like this. Many, have fallen into the error of expecting red wriggler castings to appear as grain-like castings and I've seen producers who honestly sell the real deal be accused of impure castings. Producers who sell similar appearing 'red wriggler' castings have very likely dried them out to achieve this. These would surely be of lower quality. Most commercial castings producers use the large species.
I never said that quality castings/vermicompost should have insects. I said that mine does and my customers expect them along with some worms and egg capsules. [rollie pollies, springtails, millipedes, etc.] As for the stuff from BAS in question, I would love some of that, with rove beetles included.