yes, it's only one example among 1000s of opposite ones but things are changing even in Microsoft, very slowly, with lots of setbacks, but they are. They won't transform MS anytime soon and possibly ever but I see saner pockets emerging.
Oh no wait, for those of us who have actually used these specs (in my case MSRPC/DCE), it's a hopeless mess of blatantly incomplete documentation obviously written by the lowest bidder.
Microsoft haven't changed. They've succeeded in changing their perception only. The company is still predatory sales focused and always will be.
It's almost like they have more than one person who writes specs.
Now, I cannot imagine what unearthly sequence of events led to a snafu where MS had to ask an outside party to reverse engineer their own stuff in order to document it... But that may explain your experience.