Anyways, this is all Pedro Soma's gain who has excellent potential but needed a ton of first team minutes in the B to be build around. I didn't see it happening with the way Prim was playing, but now the door has been opened.
La Masia produces midfield talents on the moving assembly line. You can't give everyone a spot in the first team. Especially with today's generation. Nothing wrong of him to try his luck somewhere else. The door will always remain open if he proves he has enough talent to join the first team and wants to come back anyways.