Atletico Madrid won't take any risk here. Elche is compare to not strong team as Atletico Madrid. My personal opinion is Atletico Madrid will win the match against Elche. But they have to play carefully because a single mistake can change the result.
I also think that Atletico madrid have a great chance of winning this game because they are chasing 3 points to stay in the top 4 standings. And it's true that Cunha just scored in the 28th minute through Lodi assist. Well if Atletico are able to win tonight of course they will be safe in 4th position in the standings and will play in the Champions League next season.
Atletico played quite well in the first half, they managed to score a goal in the 28th minute and took the lead temporarily. Although Atletico had to be
careful in the second half, Atletico needed to score again, to ensure they won the game. I believe Atletico can beat Elche, because after all like you said
Atletico need 3 points to secure their position in the top 4. Moreover, Elche is a weak team trying to stay away from the relegation zone, so Atletico
do have much better quality players than Elche. If we look at the match statistics, it is clear that Atletico are a bit more dominating, so Atletico should be
able to win the game.