> I mean, it's his company. Kind of a weird comment to make.
Its a public company, so it belongs to the shareholders. Brian Armstrong is one of the founders, and is the largest share owner, but a cursory google suggests that he owns just about 10% of the shares by value.
If there is any truth in this world it is that shareholders absolutely call the shots. Anyone with any experience in finance can produce tens of thousands of examples of this - from shareholder lawsuits, to activist investors, to hostile takeovers, to board shakeups... The list goes on and on and on and on...