True. They claim they love Open Source/Linux, but everything they do regarding Open Source/Linux tells me they probably don't beyond how it can be used to serve Windows/Azure.
Of course, they do what can be useful for their company. Also I think that improving the WSL will just lead to a decrease of users who install Linux on their devices (though this year we saw encouraging data). It's easier to just boot it via Windows. Now they even allow the use of directX from the WSL, why don't share it with the Linux community instead?
I have been a dedicated Linux (Debian) user since 1996. I never found Microsoft too useful, it seems to be as user friendly as an iPhone.I do not require and idiot OS on my phone, nor do I need it or want it on my computer. That said, my computer(s) and Microsoft will forever be in 2 separate worlds.