As far back as Plato and Thucydides (History of the Peloponnesian War) we find that great accomplishments are accomplished by seriously flawed people. Through millennia that has not changed.
Elon Musk will be remembered in that vein simply because he has changed the way people understand local options (Zip2), manage money (PayPal), understand how to use rockets better than ever was possible (SpaceX), and so on through the long list that grows longer... but throughout history those seminal figures all have large flaws, (here Homer's Iliad and Odyssey illustrate the mythical understanding of human frailty) as does Elon Musk.
The question here is whether Mr. Musk's enormous capabilities extend to managing a commercial enterprise with large scale for which continuing success depends on widespread governmental and commercial cooperation and assistance. In short: is he the best CEO now?
We all understand that Ms.Shotwell is a superb CEO, regardless of title, who has the very rare ability to manage simultaneously crucial conflicting views with success. From SpaceX directly, (most constrained by US government issues) to Starlink (practically all governments from USA to Maldives very protective of telecommunications issues) she manages to finesse all that and continue with Starship too.
Some of us think we need a Shotwell for Tesla.
That is a very different issue than is the 2018 compensation agreement. We should separate those issues. Were there a "Shotwell" for Tesla I would be doubling down on my 2014 position in TSLA.