I'm struggling to find anywhere in the cited Ubuntu blog post that talks about a vow to maintain focus. The summary itself never revisits that phrase to explain it further, and while the words "maintain" and "focus" do appear in the Ubuntu post, they are completely separate and there is no theme of vowing anything or staying focused on any particular thing. If anything, it's the opposite.
Phase one of the restructure consisted of updating
Ubuntu.com to reflect the expanded scope of the
project.