Sure, but consider that some people might not be able to just make that choice in any given context. I was working as a freelancer wher a lot of my job meant i

Sure, but consider that some people might not be able to just make that choice in any given context. I was working as a freelancer wher a lot of my job meant interfacing with files other people made in Software that only runs reliably on Windows or Mac (and I tried regularly). So WSL provided me with a way to run Linux stuff without having to run a fat VM or dual boot. In fact my experience with WSL is probably why I run Linux as my daily driver OS in academia now, since here the context differs and a switch to Linux was possible. Whether a thing is useful is always dependent on the person and the context. WSL can absolutely be a gateway drug to Linux for those who haven't managed to get their feet wet just yet.