desitter
You most certainly can blame the Captain. Doesn't matter who is in control he has responsibility at all times. They were quite obviously taxiing way way too fast down a taxiway at night in JFK. Even If the CRJ was stopped with his tail infringing the taxiway it is still no excuse not to stop and ENSURE wing tip clearance.
He was taxiing way to fast and didn't give himself a chance.
I'd even suggest it was a big surprise when he hit it as I'll bet he didn't even notice it beforehand. Either that or he has very bad judgement as to how long his wing is.
TUT TUT.