OK, first of all, let's not get too smug, especially considering DeSantis is likely to get re-elected next year by a healthy margin.
Also, I've said before that I think DeSantis is a very smart guy, and I think you're underestimating a key insight he's had:
It's inevitable that, with an event as disruptive as a pandemic, a good chunk of the population is going to chafe at having their routines disrupted to the point where they will want to downplay the threat. With a pure-id politician like Trump, that sentiment got expressed in really dumb formulations ("This will all disappear", "Slow the testing down", etc.) The problem politically is that while that may appeal to the die-hards, most voters don't like to think of themselves as dumb, so many of them will recoil from those ideas, as well as the politicians who espouse them.
What DeSantis has done, though, is construct an intellectual framework that allows people to self-justify their desire to minimize Covid. Now, not only are you not dumb for being opposed to vaccines or mask mandates, you're actually smarter than all the sheeple who mindlessly follow the diktats of that discredited loser Fauci.
From a purely cynical political calculus, it's ingenious.