It might be, but then again it might not. It don't deal with any sources nor do I have any inside knowledge about where the powders from China for example are actually produced and what their QC is, but people who have tested UG products such as Ronny Tober (who worked for Llewellyn) say most powders nowadays aren't the highest quality, wouldn't pass QC tests necessary for human drugs a lot of the time.
I don't know anyone who is serious who would rather choose UGL over HG, if all things were equal - price, access, etc.
Personally I would gladly pay 3X UG price for same amount of HG that I knew for sure wasn't fake.
Think about this. After a UG receives his powder, how is he making sure that powder is pure and contaminant free? Or does it go into products with no assurance except the word of someone in China at the end of an email address?