Indeed Pressman, but being a scheduled flight, RYR will only currently allow 4 PRMs to book.
Going through Tangney Tours or Joe Walsh Tours allows the groups who wish to visit Lourdes to book as many PRMs as possible.
My max so far has been 14 WCHR C..plus of course all the assorted
WCHR R,MEDS,BLIND and DEAF Pax. LDE airport is also well set up for these pax.
I don't think you'll find many of these pax would want to risk RYR and PAU ?