I think I might also be fairly unique in being able to see past players diving, rightly or wrongly. I'm more bothered about their technique, vision, movement, etc. so I'll still rate the likes of Alves and Busquets.
Also, with regards to the diving I don't think all of Mourinho's pre-match comments help. It puts a lot of pressure on the ref and just incentivises players to play on that or try to negate it. Obviously diving can still happen without those comments, but I'm fairly sure it exacerbates it.
I also wouldn't say diving and feigning injury is that bad in Spain, even if it's better in the prem.
I think the other thing to consider is this: if you were a player and you've been fouled, would you rather go to ground and possibly grab your shin/face/other body part to emphasise that or stay on your feet/not grab your shin etc. and risk not having the foul given? With the Pepe red card, it definitely was a foul and a serious one, so was Alves wrong to draw attention to that fact, or am I just trying to defend the indefensible?*
*Obviously I'm not condoning blatant dives, this is about when fouls have actually occurred.