It must not have been screamo, because any screamo band worth their salt, wouldn't play around with keytars or t rex hands. I'm not a huge fan of screamo, but stuff that I have heard, I have liked and some shows I have attended have had screamo bands play, who haven't been bad. It doesn't take one a long time to figure out what is a screamo band relating back to the old sound, which had no keytars, trance breakdowns or trex hands, but would most likely have sung some song about feminist anarcho politics and fucked any party image of.
Regardless, this arguement/thread is pretty much a waste anyway. What does one achieve worrying about such matters?