From the crew statement:
She regarded the defect as minor, one that did not justify any actions by maintenance personnel, especially as they would have had to fly from Barcelona, since the airline does not have mechanics in Ibiza.
I've noticed this law of nature operating in various companies/individuals over the years. Now I've a name for it - the Law of Ibiza!
The seriousness with which defects are treated is inversely proportional to the distance of qualified repair staff.