I really wanted to like this article, and I think I do even though I'm struggling with the central premise (at least the central premise in my mind).
I certainly agree with the premise that 'leaders' need to know a lot about that which they are leading along with an ability to empathize and motivate.
Where I got hung up was in the idea that founders = leaders. As a founder of a company, I don't think being a leader is a prerequisite, or is even a natural ability of most founders.
When I worked with an investment bank, we met with a ton of founders. I'd say 20% of those founders we met with were considered leaders. Certainly not that they weren't able to become leaders but they weren't leaders when we met with them (usually at the early stage, with less than 6 employees).
Leadership is one of those missing skills (like finance, or marketing, or sales, etc.) that founders need to work on.
If that's the direction they want to go in.
(Who says being a leader is for everyone?)