Yes, but in any market you need to realize that you are predicting the market, not the underlying reality. If the market is detached from reality you won't make any money by being right about reality unless you can predict when the market will move closer to reality. That's the crux of the quote and why it's generally a good counter to this kind of 'put your money where your mouth is' retort to predictions about reality.

(And in general, the market sentiment seems to be "There's a decent chance this all just blows over", so shorting is likely as ill-advised as plowing in long, unless you happen to have better insight into the decision-making in the white house than the average participant)