It matters because it validates that cooperatives can grow very large, and refutes the claims such as "yes it's nice, but of course it works only for small ventures and could never grow)
On the other hand, you have a business that generates a decent largely passive income that lets the owner take lots of time off and basically not work any harder than they want to.
I consider the latter a lot more lifestyle-businessy than the former.
And this isn't heartless, capitalist efficiency, sometimes there's a large environmental cost to distributing work across a population, like if everyone dumps a little bit of waste into the sewer because it's too expensive to treat (or burns their own coal for cooking), where a much larger entity has the efficiencies to treat the waste properly (or generate electricity much more cleanly) and the government can actually monitor the single entity.
Additionally, a lot of things are only affordable to most people because they are mass produced. There's a very good argument that a lot things that are produced are just utterly unnecessary, but that doesn't invalidate the point that some very necessary things are only affordable to the poor because they are made by the million.