I am a little surprised by the negative results achieved by Atletico Madrid, because apart from they lost this match their game was also not as expected. Villareal were able to play better and were also effective in this match. At their peak, they managed to score a goal in the 73rd minute, and they managed to double the position in added time and end the resistance from Atletico Madrid.
If you look at the starting lineups, you must realize the reason why Atletico can be defeated in that match. I don't know what Simeone thinks about the strategy, but putting 3 defenders only is too risky against a strong team like Villareal.