I think Xavi sounds selfish, if he really wanted Ansu Fati back, why did he still get so little playing time in the end? in other words Ansu Fati is playing at Brighton just to hone his skills and then Xavi will take it back. Isn't that selfish enough, I know it is their right because Ansu Fati contract at Barcelona is still long. I never stop thinking that Ansu Fati potential will not develop even if he returns, because he has to queue for a long time to get playing time. Waiting for the main squad to be injured and Ansu Fati remaining unchanged whether he goes to Brighton or not, he will remain a reserve player.
My view is that Xavi wants to see Ansu Fati able to develop her talent in Brighton than surviving in Barcelona, she has difficulty getting a place in the squad because it is unable to compete with other players in the same position. Ansu Fati was not removed permanently but the loan status, unless Xavi decided to hold Ansu Fati in Barcelona and did not give minutes to play, for me it could new be said to be selfish. Ansu Fati is still young and can return to Barcelona if her condition has improved and my assumption Xavi wants to provide an opportunity for her to be developed.
Xavi has a long -term plan with young players owned by Barcelona and there are many things that might not make sense according to us but the coach does not see it as from the egoism section. Just wait for the future developments and certainly Ansu Fati will be one of the players that Barcelona needs in the future and it depends on how he tries to improve its quality.