My observation tells me, he is distancing himself ever-so slightly for some reason, and/or hedging his position with Counterparty, somewhat. His facial expressions when he says "other...."etc, seems to express slight pain.
Like i said, just an observation.
Looks to me like someone has convinced him that a different approach, not using CounterParty is better, but that he's still not comfortable with going back on his original plans or perhaps doesn't quite trust the new alternative as much as he trusted the CounterParty solution.
What I'd like to know though is what the CounterParty devs are going to do if Medici does use an alternative?
Didn't a couple of the main devs take a job working for Medici, whilst promising everyone that they were still working on Counterparty because the two will work together? I remember there was a bit of a panic from some people until they managed to convince everyone that they weren't really leaving. These guys need to leave Medici immediately if it becomes clear that Patrick isn't using CP, because otherwise it will look very much like CP is being abandoned with an incomplete dev team.