I think that might be counter-productive. The word about Suarez is already out there and didn't need restating - it'll just fire the little tvvat up even more to get a goal; but any ref might look at those words and use them as a nice excuse not to give someone like Jelavic a pen if he gets clipped in the area and it's a real decision to be made - Moyes is basically laying the groundwork for that decision.
I think the rat is always a rat , there was no build up to the rid well dive but h got the lad sent off screaming like a stuck pig to deceive the ref. this is a player who cheats , bites , racially abuses and feigns injury so for me restating that isn't an issue as he'll be cheating whether moyes mentions it or not. By the way I think he's a very talented footballer it's just he's also a gobsh*te