Yeah a few things worth noting from the video and Huffington post article...
Ryan air offers to move her before the racist slur. She refuses. She tells him he stinks and needs a bath then the racist slur happens.
The only person calling for the man to be removed is a very loud voice, the one behind the camera perhaps? Noone else is. Yet they've clearly sat through the whole thing
Even the guy in the black shirt who trying to calm the situation isn't calling for the guy to be removed from the airplane. He does eventually say to the air attendant "I think you're going to have to move her"
The Huffington post makes no attempt to ascertain the gentlemen's side of the argument.
Police will have access to witness statements as well which might flesh out the picture somewhat. Mob justice has already decided both him and Ryanair are guilty. He's had his face plastered all over the internet.
If Essex police investigate it and find a much more complex situation its not going to matter. Twitter has hung drawn and quartered him already.
I find that really sad.