He could have took a dump in the changing rooms, called Everton's new owners and management team everything under the sun and walked out wearing a Liverpool top.
Doesn't matter, image and Everton first. A statement of his sacking should include thanks or a well wish. It's a classless statement, not befitting of Everton. Those responsible - a lot who were around for that statement against the fans prior to Southampton - should give their head a wobble. Anyway, won't keep banging on about it, most - even those who really disliked him, if honest will raise an eyebrow at that statement.