Where you personally draw the line between "authority figure spouting off about something in official capacity" and "pushing" is up to you, but it's hardly delusional. It's also a hypothetical worst case scenario, if you read what I actually wrote.
It's "unproven" as a treatment for COVID but pascal's wager would say that there is no harm in taking it.
That's nonsense, plenty of approved medicines have pretty crazy side effects, and can do more harm than good if taken when they aren't needed.
Pascal's wager, about the existence of god, is also incorrect FYI. It posits that you should believe in god because you have nothing to lose. Amongst other criticisms it fails to take account of the negatives of adhering to a belief system, and it fails to take account of the possibility of choosing the wrong god(s).
There are two worst case scenarios here - Firstly, politicians pushing unproven drugs on the general population, causing unnecessary deaths. Secondly, treatments which may have some efficacy being abandoned because of a reaction against those politicians, potentially causing a failure to bring an effective treatment to bear.
Both of these can be true at the same time.