If this ad is McGarryBowen's work then United needs to seriously consider conducting a search for a new AOR.
As many others have said both AA (McCann/TM) and DL's (Widen + Kennedy) recent ad campaigns have actually been quite good and have a clear message and audience.
Those ads work to make a connection with their target audience. I don't even know who is supposed to be the target audience for this UA ad, let alone what type of connection (emotional, intellectual, or otherwise) this ad is attempting to make.
Southwest looked beyond its long time AOR for additional help and hired TBWA to create its recent "Welcome Aboard" campaign, which actually was the first WN ad I liked in recent memory.
http://www.adforum.com/creative-work/ad/player/34484036
Perhaps its time for UA to bring in some extra (or new) help on the marketing side.