Microsoft touting WSL is an attempt to steal market share from actual Linux. It’s designed to make people think “if Windows does everything Linux can, why do I even need Linux?”, thereby feeding Microsoft licensing money, market control, and the user’s data. It’s not a move with computer users’ nor the free software ecosystem’s best interests in mind.
Hopefully that will change with more and more companies shipping laptops with Linux. Dell and Lenovo seem to be tier-1 companies that are leading the charge, there’s also Purism and System76.