"Don't Believe The COVID-19 Models: That's Not What They're For"

I do not understand this.
Is he an instrumentalist?
Or is this because the Trump administration seems to have accepted a model and publicized its output?
Models were good when the Imperial College model was front and center. Are they bad now? Is the suggestion that this one is too pessimistic? Wasn't the other one worse?
I have no idea what's going on.