I think the new culture of diving as the 'new appeal' by all players is ruining the image of the beautiful game in general. Barcelona's passing and skillful attacking is something you cannot see in any other team, so this sets them apart from the rest. It's attractive football, and it seems to work for them..as they are a highly successful club!
Their bad diving shows they are not used to it and are not as skilled in that department as other players...But players feel if they do not over-exaggerate falls they will not get the referee's attention...and in some cases this is true.
Accurate and standardised refereeing, together with punishments for play-acting will help eliminate this problem, before it destroys the beautiful game!