I think with Atletico Madrid playing like this they clearly deserve to get 3 points. The second half will be dominated by ATM players if Dortmund don't dare to play aggressively. Mentally, in terms of experience, aggressive attack and free play, ATM is superior, but if the Dortmund players are able to provoke emotions and make ATM a little less focused, it will provide a slight advantage. Regarding the temperament of ATM players, it is clear that they are known to get emotional easily, it is clear that playing on your opponent emotions plays an important role in controlling the game.
On the other hand, if Dortmund game is monoton, there are not many changes and it is still the same scheme as the first half then there is nothing to hope for. Dortmund attack line is quite blunt, Marcus Reus must be brought in immediately to sharpen the attack. He can at least provide a difference on the front lines.
Atlético Madrid are really dominating the game, I can see what they are trying to do in this game, is to killing it off by getting a good score margin between them and Dortmund, so that it will be very difficult for Dortmund to even think of a come back in the second leg. Dortmund are playing this game with fear, I don't know what their game plan was, but it's quite clear that the plan isn't working. They have to change their tactics if they are to reduce this scoreline. If they continue this way they are going to conceive more goals and it won't be of benefit to them heading into the second leg. They are giving Atlético Madrid too much chances to penetrate their own half.
With the conditions that are happening now, it seems that it will be a little difficult to force Dortmund in conditions like this where they are really troubled in the face of Atletico's defense even though for this second half there seems to be a lot of changes they made.
In the second half this time Dortmund tried to increase the intensity of their attacks because they realized that the current situation would not be profitable if left like this but Atletico's defense was still very good where they were still very disciplined in maintaining the defense they had.
20 minutes of time left but if Atletico's defense does not waver then indeed I think the final result will still not change for today's match.