I'm pretty sure the gist of what they're saying is that you were massively oversimplying medical research. For my own two cents, I think the development of mRNA vaccines is amazing, but it's extremely off putting to see it get held up as the one stop shop for "solving almost every virus" so soon. Pump the brakes a bit and let the research and development finish running it's course for more vaccines before taking victory laps, for lack of a better phrase, that big.