Announcing this long ago doesn't make it any less shitty that a fully working still relevant and expensive VR device is now a paperweight. Keeping a minimal framework alive so that the devices can be used with e.g. steam would have been the right thing to do.
Also, no one using WMR devices on Windows wants to bother with Linux. Most of us were using the device with things not available on Linux, and even if they were we don't want to run Linux on a desktop. It's not a solution.