Until quite recently, I would not have even entertained the idea that Google would go live on a major test without thinking through some of the basic implications. But we've recently seen some seriously unvetted things happen with Google, the biggest of which was last weekend's "the whole Internet is malware" fiasco.
Google said it was a human error, as opposed to a test, if memory serves. (AdSense publishers have had earlier problems due to human errors in the last year, too.)
These AJAX test SERPs break Google Analytics, too. That seems like the sign of an accident to me - an unforeseen consequence that certainly SHOULD have been foreseen, but wasn't.
Yes, left hand not knowing what the right is doing. It wasn't long ago that Google Analytics was developed with new features. Usually that's not the sign of a product being phased out.