Needless, to say the Islamic Board claims it had no intention of offending anybody's religious feelings. It maintains that the Cathedral just happened to be the most convenient place for the faithful to pray.
Observatorio del Islam notes that “WebIslam is a radical Islamist website funded by public money, where government banners are still being displayed.”
The original video already had subtitles (in French and English) of the audio. Our Spanish correspondent Hermes has translated the text portion, and Vlad Tepes has added the subtitles: