Apparently you disagree with Zach as to his own career. Wikipedia has his bio:
Zach Kirkhorn - Wikipedia, as does his LinkedIn page:
https://www.linkedin.com/in/zachkirkhorn.
Wikipedia says:
Education
From 2002 to 2006, Kirkhorn studied both Economics at The Wharton School and Mechanical Engineering and Applied Mechanics at the University of Pennsylvania as part of the Jerome Fisher Program in Management and Technology. In 2013, he received an MBA from Harvard Business School.
Career
During his studies in 2005, Kirkhorn joined Microsoft as a Financial Analyst Intern. In 2006, he did another 4-month internship at Microsoft as Program Manager Intern. After graduating in 2006, Kirkhorn spent nearly 3 years working at McKinsey & Company as a Senior Business Analyst.
In 2010, Kirkhorn joined Tesla as a Senior Analyst in Finance. In December 2014, he became Director of Finance, and in December 2018 he was appointed as Vice President of Finance. On January 30, 2019, Kirkhorn was announced to replace Deepak Ahuja as Tesla's new CFO on the Q4 Tesla earning call.
So when it comes to ignorance and arrogance, I think you win. This is not "new evidence".
So the fact is that Zach is a bean-counter, no matter how good. He was never an engineer. It is my opinion that that means he will never be CEO of Tesla, and that Elon will have lost his mind if he puts him in that position. It's not possible for him to do the job as it needs to be done for a company like Tesla. He's just great at the job he's doing.