Why focus on a single tweet, pretending as if that is the only relevant communication? He called it "very very promising", claimed it would become immediately

Why focus on a single tweet, pretending as if that is the only relevant communication? He called it "very very promising", claimed it would become immediately available all over (it won't), and has been talking it up for multiple days at multiple events on national television as a treatment for a rapidly spreading disease. His own experts are contracting him in an attempt to tamp down what a moron in a hurry can correctly guess is going to happen. If you wish to hang your word on the fact that he never explicitly called for self-medication, well, it is your reputation.