It's just his way of replying to this: David Moyes says he is worried Luis Suarez will take a dive during the Merseyside derby | Everton News, Fixtures, Results, Transfers | Sky Sports
IMO Moyes is also in the wrong for saying **** like this to unsettle Suarez.
Regardless, it's a valid point. Though today he let the football do the talking and put in a fantastic performance. That should be response enough. You have to rememeber that if he did that, and the officials were a lot stricter there could have been consequences. It could have incited a few fans to do something stupid