Let's be honest. Compare Seville's recent form to Barcelona's. Whom do you think has a higher chance of winning the match?
Seville
Even on this successful segment for Barcelona that you showed and the “unsuccessful” one for Sevilla, it is clear that the teams play about the same. But for Barcelona, this segment is a rise, and for Seville, a fall. What happens if everything returns to "normal"? I think the advantage of Sevilla will be obvious.