I’ve got to agree, rhe number of average pizzas that I have somehow made exceptional by reheating like this is all of them. I also agree with upping the heat a notch and using more water, the stated amounts and times never worked for me.
As always, it comes down to “what does medium-low” mean. Stove temperatures are very very far from standardized. One stove/burner’s low will produce the same power as another stover/burner’s medium-high. On my gas range, on the burner I would use for this, I’d be running it near the lowest setting for this. On my mom’s gas range, I’d be running it around “medium”.
I love to cook and have done so daily for a long time (I’m an old fart). Something I’ve learned is that stove temps and stove cooking times in recipes are little more than rough guidance. An experienced cook can take that info and interpret it for their setup, as well as judge doneness and temperatures by things other than time. But this leaves a really challenging gap for novice cooks, who can follow a recipe precisely and end up with burned or undercooked food.