Actually, they are lying through their teeth. They lie because they want to distance themselves from the "war on marijuana" and they want to protect their future profits.
It most certainly does add respectability to MMJ. Its probably safe to say that for MANY individuals, it is cheaper to grow your own, you can still get good medicine that is specific to one's own condition. They lie because they need to.
This is the main goal of CBIS, to standardize strains for certain conditions. All standardized cannabis is, is blended strain or strains to make a uniform formula.
What they still don't get.....and what makes CBIS stand out....is the WHOLE plant is used as medicine, not just parts of it. GW still errs in that direction.