It's dangerous how prone he is to fashioning himself to be an authority on things he knows nothing about.
If you're going to claim Musk isn't an engineer then you're defining the term so narrowly it stops being interesting. Biographies of him are quite clear that when he decided to make SpaceX he spent a very long period of time indeed doing nothing but reading rocket science textbooks; it was the knowledge of rocketry he gained by doing that which allowed him to realise which problems needed to be solved, that they could be solved, who could do the work to solve them and most importantly to gain the confidence of other rocket engine designers and convince them to join him. He pretty routinely engages in technical discussion about rockets, what happened, what went wrong etc.
That's on top of his experience as a software developer.
So if you're going to claim Musk isn't an engineer then really neither was Bill Gates, Larry Page, or other people who did some initial work and had some expertise in what their company did but rapidly became a professional executive.
>Elon Reeve Musk FRS (/ˈiːlɒn/; born June 28, 1971) is an engineer, industrial designer, technology entrepreneur, scientist and philanthropist
Still haters gonna hate.
To be fair and pedantic, he's proven expertise in broad areas. Regardless, I agree with your last point.
As far as I know it's mostly VC and some product design leadership.
https://www.quora.com/Does-Elon-Musk-do-some-very-technical-...
There's more examples from interviews with people at SpaceX on YouTube I can't find right now. Web development and rocket science are two very different domains.
We'll probably have some more data as places start to reopen.