Or, I would...
Does "Or, I would suggest, in..." mean "if he did not mention it in his paper I would consider it myself in ..."?
McGonigal’s paper differentiates importantly between two identifiable strains of flash mob: the one of site-specific ‘play’ is intent on ‘fun’, whilst the other of site-specific ‘performance’ is more concerned, so it is implied, with instilling a deeper political or ethical consciousness. Or, I would suggest, in revealing the rich contradictions of agonistic urban space.