Mainstream Media has been using this tactic for years along with the Super markets telling people to stock up whenever there is a storm of some sort. Thus with the covid 1984 nonsense the sheeple stocked up. This is just the same.
Convince people there is a shortage and they will rush to get in line for the vaccine. Problem, reaction, solution. Classic Hegelian Dialectic. The calcified masses have no clue of the social conditioning they have fallen prey to.