Who cares? It's not like 4.2.2 actually fixed anything. I have a Samsung Galaxy Nexus and Google are falling in my opinion. It's no better for 4.2.2.
The 4.2 upgrade (the first one) made my bluetooth unreliable and made the lockscreen corrupt when playing music. I'm just saddened by Google's quality issues. No, subsequent 4.2. issues didn't fix the problems.
Hey ho, maybe I'll get reliable bluetooth back in Keylime Pie, who knows?