Well because he played vs Peru and wasn't hurt (this curse was from a month ago), so it didn't help Peruvians. But it worked regardless, just a bit later. Amazing.
For real though, Rio is going through an even rougher time security wise and given the sheer amout of argentinians there right now, it's not a suprise seeing that (albeit a sad one).
BTW we dont hate each other, We just are sport rivals, if you ask me:I get that both countries are football mad & to an extent hate each other. But they'd be better served taking a lesson from other countries that hate each other with a passionlike Algeria & Egypt.
As far as I know, neither of them travel with anything remotely resembling dedicated fans & mostly rely on expat communities already living there so as not to make themselves targets.