Alcohol can’t be powdered. It’s little capsules that open when water is added. But for marketing purposes, “powdered alcohol” goes further.
How long before some sensation-seeking irresponsible idiot tries it without adding water first? Are the emergency rooms ready for this?
Repeat:
It’s a small drop of alcohol encapsulated, so a bunch of them behave like powder.
The same trick is used in baking: A small encapsulated drop of water is added to ingredients as a powder, baking heat releases the water vapor and the resulting baked good is very moist without being mushy.