I’m sorry but that is a grossly irresponsible, misleading and dishonest (or perhaps simply ignorant) statement to make!
Do you know the compositions of all other resins out there? Have you taken into account that there are bio-compatible formulations that are subject to stricter safety requirements (and likely much safer to handle, even uncured, than production resins)? Are you aware that many toxins take many years (not just ‘two’) before their adverse health affects may become evident, even after short exposures?
Your statement reads as a something a snake-oil salesman from the 1800s would write.
The instruction sheet contains misleading or incorrect statements as well. But hey, anything to “make some dough”, right?