I think the problem with Atletico is that they got 'too successful a team for their own good'. They have started playing like a top team, attacking and forgetting what they did when they achieved good results against top teams. However, they are not quite good enough to play like Barça or Bayern. It works against weak teams, but they get exposed against a top team like RM. If they had played like before, defensively with counterattacks, they could have beaten Real, but they attacked and played constructively and suffered from RM's counterattacks. I understand that Simeone finally wants to try playing beautiful football, but by abandoning the dogged, destructive tactics of old, he made it much easier for RM. In addition, Griezman was not at full strength and Carrasco was unlucky despite some impressive runs. Savic caused two goals had a terrible day. The 3rd goal was a consequence of open space created by Atletico's desperate attacking when being 0:2 behind. And you have to give it to Bale and Ronaldo - they can run very fast.