In my opinion, the most important result is that a black guy can run for president and hold his own with anybody else. This pleases me but does not surprise me in the least, even in as white-bread a state as Iowa.
I'd now call this the Post-Obama Era for race relations in the US - an era in which victimhood has definitively lost whatever remaining persuasiveness it had. Obama did not run as a black man: he ran as a man.