That is what he is saying, yes. Although I think this varies greatly with region, because in Toronto it is more like 4-11% for an ESOP.

"Employee ownership levels are higher in well developed startup cultures like the bay area, boston, and NYC. They are lower in less developed startup communities"

Yeah I saw that, I just wanted to give people an idea of how much it can range.

Yes, the "10-20% of the equity" is generally provisioned for the company's stock option pool.

This is definitely biased towards technology startups.