The 20-year-old AZ attacker has committed his international future to the North African nation after receiving an invitation from the Moroccan Football Federation.
Oufkir had previously been involved with the Netherlands youth setup and was even selected for Jong Oranje's European Championship qualifying fixtures, but ultimately decided against continuing his journey with the Dutch national team.
Speaking at his Monday morning press conference, Xavi confirmed that the KNVB had made considerable efforts to retain the promising winger but acknowledged his choice to switch allegiance.
"I respect the players' choice. I think we did everything we could, but ultimately we have to respect that choice," Xavi stated.
"I can be involved if it concerns a player we need. Other than that, I can only say that I respect the player's decision. He has chosen Morocco and we don't need to talk about this player anymore. We did everything we could and ultimately it is the player's decision."
Oufkir's departure represents a setback for Dutch football, particularly after he helped the Netherlands win the Under-19 European Championship last year.
His decision also underlines Morocco's growing success in attracting dual-nationality players with Dutch connections.
Morocco have recently overtaken the Netherlands in the FIFA rankings and secured commitments from other talents, including Ajax youngster Abdellah Ouazane and Anass Salah-Eddine.