WSL is fine, but it's lack of IPv6 is sort of a show-stopper for sysadmin work. If you're only using it for the coreutils then more power to you, but I still think I'd end up reaching for the trusty Arch Thinkpad when work needs to get done. To each their own, though.
The days are gone when all I needed was a DHCP address on the network and I could do anything. Over the last couple of years we've added more layers of security at the network layer that would unexpectedly break me and corporate apps are increasingly tied into AD for authentication. Yes, these can all eventually be sorted out for a Linux workstation but without corporate support it became increasingly time-consuming and my harsh paymasters aren't interested in me spending time on that activity.
I think the last straw was when the Unix admins bailed and went to WSL for the desktop. They were my back-door resource for visibility on infrastructure changes that broke things for the non-Windows users.