French club unhappy with English rapper

Paris St. Germain has threatened to sue London born rapper M.I.A. if she does not cease to use characteristics of the club in her video song. This French club also wants a compensation and stop broadcasting the video after the rapper uses a modified version of the club's t-shirt. In the video who is showing the temptations of the refugee crisis 'Borders', M.I.A. is wearing a white PSG shirt with the words 'Fly Pirates' instead of the club's sponsor 'Fly Emirates'.
Just what kind of 'harm' have they suffered of just using the logo only the French knows. On the other hand if Emirates (the airline carrier) is angered with her or no, we will never find out.