If Generac is running at full capacity, more demand isn't going to make more money for them, or substantially make their stock go up.
Sure will help Champion, etc. If Generac can grow their business by a third, you bet.
I have owned Generac stock. What goes up comes down, though at least I rode a small wave. Definitely a bigger wave now.
And a lot of folks who bought portables are going to want an easier or more powerful solution, and quieter most likely too.
Most of us are dependent upon electricity for our heat in some way, whether fuel oil pumps or heat pumps or gas hot air systems, no juice no warmth.
So for me, in a state where it definitely gets cold in the winter, unlike South Florida, maintaining heat is most important to me. Less important, though not much, is a/c.
For folks up North who burn wood, you really can thumb your nose at this, but most of us can't. We are hostages to our electric appliances.
and therefore we surely shall maintain the generators that keep us going...