Aena, the airport operator and ATC service provider, stated that the UTAir Boeing could have continued the landing without any danger, the separation was sufficient. Neither company filed any safety report (editorial note: this statement, although not expressis verbis stating this, suggests that the Airbus was cleared to cross the runway).
So did they just go around for sh!ts and giggles? An honest mistake from ATC and dreadful airmanship from the Argentinian crew.