Yea, one quality I have observed with Real Madrid is that they often bounce back quickly and this works for them. Now that Madrid will be playing at home, the expectations are on Madrid to deliver. Just like you, I am confident too that they will change the narrative already on ground. The possibility of some funny surprises is low here. Except maybe if Madrid decides to sleep on bike.
They lost to Barcelona last season all the time they met, this season might be different but it wasn't a nice finish for Madrid in that game. Atletico Madrid are tough but shouldn't be this difficult to withstand that Madrid allowed this much goals. It's not right to be confident about Madrid especially in tough matches, they may not live up to expectation and if you bet on that game, might end up losing.