MAEL or whoever they become in the future could do with some foreign airline work in the summers, bitter loss, loosing Fly Dubai contract for example.
Two things; first, why should MAEL become anything else than MAEL in the future? Second, aircraft maintenance is a competitive business so it is perfectly logical, nae normal, that contracts move around. One day you might lose airline "A" as a customer, and the next you might gain airline "B".
Absolutely normal in private industry.