It's common in science to research an "obvious" thing, because sometimes it leads to nonobvious results.Yes, I'm aware.
I don't think anyone intends to reinforce the current state of the world by studying it closely, quite the contrary.
And yet you and other people here are all too happy to dismiss small businesses as not really entrepreneurs in part because of how this article chose to define a word for which there is no generally agreed upon definition.
Entrepreneurship Definitions
Economists have never had a consistent definition of "entrepreneur" or "entrepreneurship"
https://www.investopedia.com/terms/e/entrepreneur.asp
So, I don't count because I'm poor. I will never count because it's circular reasoning that will help to continue to exclude me (and others like me).
I'm getting downright aggravated at this point. This article seems to be doing a very handy job of gatekeeping and reinforcing the current status quo.