Seems a tad excessive to me, in the context of punishments for similar offences handed out to other players - he's now had an eight-match ban for racism while John Terry got a four-match ban (and JT's offence seemed far worse to me, because of the malice behind it), and a ten-match ban for biting while Jermain Defoe received no punishment at all (yeah, so he got away on a technicality, whatever - it's bullshit, the FA could have gone after him if they'd really wanted to).
And he's often picked on for diving, when in fact he's no worse than many other top players in this respect - including St Leo of Barcelona, who has a habit of going down remarkably easily, yet no one seems to notice it - not commentators, not referees, not fans.
Luckily for Suarez, he seems to relish the pantomime villain role. And his terrier-like attitude is part of what makes him such a great player. I hope he just takes it on the chin and moves on.