Seems to me that the answer is here for the reading,
I have no doubt that the product works well when produced, but in the time that it takes to be transported/stored/toted around the woodland for a few years, all the volatile organic solvents have been driven off, leaving plain old saw-dust in a tin!
Processing a Maya stick immediately before your fire if fine, as the sticks last a lot longer as a viable means of fire-lighting, than the dust.
I dug up an old conifer root yesterday and broke it into slivers that certainly smell like the right stuff - a short while drying out and I'll get bak with an answer.
ATB
Ogri the trog