Arsenal is not lucky, Arsenal is good, they were doing well in the Europa League but I think they failed to be consistent because they loss focus. Arsenal elimination is an opportunity for Manchester United to get championship of Europa league. I don't consider Juventus to win the Europa League.
Arsenal was not playing good against sporting. Arteta was putting some important players like odegaard in the bench. That was making arsenal was not able to perform with the best performance. It's not always luck who determines how big the chance for a team to win the game.
Juventus was also the one among the favorites club to win europa league right now. I saw some names that potentially win europa league like MU, juventus and roma.
The good thing is the resul in europa league was actually unpredictable for sure. Arsenal was not even able to win europa league. that's why im feeling doubt if arsenal will able to win UCL.
Arsenal was not in the level to play in UCL against another team like madrid or bayern. The level is too far. I think that ten hag will be trying to win the first leg like what happened against betis.