I think most of our reds could be justified, the question really is could you also justify not giving a red? I definitely get the impression that referees go with the former rather than the latter with us, like how many times have you seen one of our players get a final warning? Oliver game Cedric a final warning before even giving him a yellow after a couple of fouls, but then gives Martinelli two yellows in the same instance, why? Atwell gave Gabriel a random yellow against City and then sends him off a min later for a little block.
I think you'd find a lot of our reds are soft, or as Arteta put it, you have to want to give a red to give a red.