A recent whistleblower complaint portrayed Dorsey as a disengaged leader, whose neglect created a "rudderless" organization plagued with serious security vulnerabilities. Elon Musk's efforts to back out of a $44 billion deal to buy Twitter, along with his public trashing of the company and its employees, has cast a humiliating pall on Dorsey's legacy and left many observers baffled by Dorsey's lack of response.