Just a little thought experiment here: in the eyes of shareholders, which is more important at the end of each quarter -- innovation, or profit? So did the profitability of the Office division suffer from not engaging the tablet? (note that some think that the anticipated use of the iPad is more on the consumer end, and less on the creation end).
And another little quiz: where does Simon Peyton Jones work and what does he do and what has he produced?
To me, the underlying takeaway from this story, and I disagree a little with the slant the author of TFA has, is that execution can trump innovation.
There have been articles referenced here on HN that talk about others stealing ideas (my favorite was one told by Steve Blank) but at the end of the day, the winner is the one who executes well.
Isn't this the bottom-line message from the Microsoft story?