The article and the quite detailed bzr history it links to do not appear to suggest this at all. Can you provide any justification for your three claims?
License Agreement: the first paragraph in the section "Hard to land patches" describes the CLA as one reason why it's hard.
Missing manpower: just glance at the mailing list archives.
Actually, sources for all three statements can be found within 2 paragraphs (moving forward and backward) of "Decline and focus on Ubuntu and UDD"