I would agree at least that “entrepreneur” connoted something pretty different to me before I became familiar with its usage in tech startup culture. I’d not have included “solo-preneur” or businesses that just operate things (“I own a lot of vending machines”) or a restaurant, say. It implied employees and a market that leans more industrial, and that produces something (even if it’s software, I suppose). I’d not have classed a small tech agency or a dry cleaning business as “entrepreneurship”—which takes nothing away from them, it’s just that the term meant something more-specific to me.

Looking at older dictionaries, this does seem to be more in-line with what the term used to mean, and probably still does in some circles.