Really, no. If he really is nothing to do with the terrorist plot (which anyway looks highly unlikely) then, such is the atmosphere in London at the moment everyone will understand that fleeing from the police into a tube station while wearing unseasonably voluminous clothing is liable to get you a bullet or five in the head.
Given that I have spent the past 2 weeks living through these events at quite close quarters I really think that I am better placed than you to evaluate the press and popular reaction.
Well, hopefully this ROPer was strapped up, and we won't have to find out.