I would like to state a fact that Sevilla had quite big difficulties against Juventus in the rematch. They were able to win by Lamela's goal in extra time and eliminate their opponent. Juventus weren't even showing their best performance in this matchup so this makes me think about the finale from multiple aspects. Roma have technically performed much better than Juventus here so far.
The fact that you conveyed is true, Sevilla had difficulty facing Juventus in the semifinals. If you say As Roma is better than Juventus this season, I don't think so because Juventus have already confirmed that they will qualify for the UCL league next season, As Roma themselves are not necessarily qualified in the UCL because they are still struggling.
So.. What's so interesting about the European League final this season is that both teams did not qualify for the UCL league route this season. and these two teams must have fought it out to win the European League title in order to qualify for the UCL achievement path, namely the European League Champion Title. Prediction, if As Roma scores the first goal it is likely As Roma will win because after scoring the goal AS Roma will definitely survive by parking the bus.
Therefore I think they can balance this duel against Sevilla even more compared to Juventus. Even though I don't like his style all the time I think that Mourinho is a much better manager than Mendilibar too. Mourinho's career is full of achievements. He is even a winner of the Champions League title two times and he did this with teams like Inter and Porto. He is a very special manager.
Mendilibar has 0 achievement (title) in his career. He doesn't even have much experience with big teams. I think in this tactical duel, Mourinho will be the winner.
Sevilla may be called the king of the Europe league, but it is superior under Unay Emery's coaching, Emery even added one more trophy when training Villareal. So the identical one is Unay Emery, three consecutive hat-tricks at Sevilla plus one at Villareal.
But Jose Mourinho is different, five finals with different teams, twice in Porto (twice champion), once Inter (champion), once Man.Utd (champion), and once at As Roma (champion) on average when champion in a club with a very long wait for a trophy. so I agree with you Jose Mourinho is a special coach.