[hga]

Because the incentive structures were not aligned the way you/users wanted?

I can't pull down this pdf right now, or maybe it's this collection of slides from a talk by Robert Pike by the same name: http://doc.cat-v.org/bell_labs/good_bad_ugly/slides.pdf

But based on the slides and the date I assume the "same thing" all these UNIX(TM) vendors wanted was for their combination of proprietary hardware and software to win in the marketplace.