Re 121.5 - I've been at my current unit for 10 years and haven't had the ability to listen to that freq since before I joined. At my last unit, it was removed about 15 or so years ago.
Might be a different case in Spain.
Not sure what the controllers were doing though - if the chap on final hasn't called by about 4nm, and doesn't answer a call, then chances are they are still on the previous freq so a quick call to the previous controller would usually sort that out, or failing that, blind transmissions, clearing the guy to land or go around.
It seems a bit mean to not make best efforts to contact the aircraft and then file on them!
For all I can't bear MOL, personally I've always found the RYR crews as professional as any other airline, and in some cases, a bit more "can do" than some