CC
I wonder if Barcelona and Madrid were dropped due to the lengh of the sectors as you can get more rotations by not going so far. With the aircraft and crew situation perhaps this played a part.
Check the relevant airports for the number of rotations into BCN + MAD by RYR + EZY and the rest. Those routes have been hacked to ribbons and any main carrier must look to serve routes that are new or have some special edge that the LCCs cannot get at. For, once they get their teeth into a route, then it is best to leave it for dead.