Given Atletico Madrid's poor form, I'm sure they'll be beaten by Villarreal at home-- or at least a draw, as Villarreal's form at the start of the season has been quite good, with two wins and one draw. Atletico Madrid, on the other hand, are struggling and haven't won a single game, even being held to a draw by Elche. With such poor form, many expect Atletico Madrid to be unable to secure a win against Villarreal, even if they're playing at home.
However, if Atletico Madrid corrects their mistakes and begins to recover after the international break, it's undeniable that they can beat Villarreal at home. During the international break, the coach will be working hard to evaluate the team's mistakes and try to correct them. Villarreal may be in top form, but that doesn't mean they can't make mistakes.
So, we can't judge a team based solely on a few mistakes. It's only the start of the season, so there's plenty of time to improve and get back to winning ways.
Villarreal is still unbeaten in the league. On the other hand, we all know how poorly Atlético Madrid has started the season. We know that every match in Spain is prone to surprise results. Even if it's Real Madrid or Barcelona, these results can still happen. That's why this match seems difficult to predict. It seems like a match with a high probability of a draw.