The problem is that the entire world has been trying (unsuccessfully IMO) to understand this virus scientifically for a year already but there are still so many questions and unknowns and more keep cropping up as we bumble along. If I understand his point correctly, since scientific answers seem elusive our only option is to realize that G-d is totally in charge - the same way He brought the virus upon us (seemingly out of pretty much nowhere but introduced within a natural process), the same way He can remove it from within our midst in a natural way.
Klal Yisrael is nowhere close to believing that, let alone the rest of the world.
I don't understand how these two things, faith and science, are somehow mutually exclusive. While you're correct that science can't quash the pandemic in a heartbeat, we have learned a lot and come a long way in this past year, and will continue to learn more. Humility and faith are important but I'm not sure how you can suggest they somehow displace science. So long as Moshiach hasn't arrived and the world works scientifically, we must continue to pursue every scientific avenue, I'm not sure where/how faith contradicts that.