yes it will be interesting to see if this signals a broader change in approach similar to their pivot to Android instead of their own in-house mobile OS.

Even if you criticise the logic in any individual case, you have to respect the discipline that it must take to drive decisions like this (if it does indeed turn out to be the case - remains to be seen). I have to think though that it is pretty toxic to their partner relationships ... who would deliver a new product based on WMR now?