People use "startup" to mean "start up business" and not "business that is aiming for rapid, borderline-unsustainable growth and very likely requires hundreds of thousands, millions, tens of millions of dollar to even start thinking about achieving it," which is what the actual definition is.

VCs aim for 1 out of 50 investments to return 100x what they put into it, and the rest of them to die quickly and stop taking their attention. A company kicking off 5% returns every year is counterintuitively worse than flaming out immediately.