Why load headlines with any form of negative language whatsoever? Why plop any mines into future interviews he may have with other companies?
Saying "we have been planning for is for Terry Myerson to pursue his next chapter outside Microsoft" is a stab in the back. Not only did they show him the way to out but they also gave him a kick in the ass while on the way out.
Off the top of my head, when the oil and gas market dipped in 2014, tons of great engineers lost their jobs because the companies simply didn't have work for them. Or a CEO that's really good at 5-50 startups simply not being a good fit for scaling 50-100 and upwards of 1000s of employees. Etc.
I have no idea whether this is actually on good terms or not, but there aren't very many exec VP level positions to go around; it's entirely possible there just doesn't happen to be one that works for both him + management.