That was humongous, ridiculous waste of Amy Acker. For fuck's sake she has to be one of the most likeable and charismatic actresses working on TV right now and all you got her to do is look sad for a couple of minutes? The only good part of that plot was Coulson's continuing disillusionment with SHIELD.
The plot back at the base was cool. I guess it's true that bad guys are easier to play.