Messi did not want to take risks and ruled out returning to Barcelona. He never finished trusting the margin of maneuver that Laporta had.
The return of the 10 meant the transfer of some players and the change of certain functions in the dressing room and on the field. The reunion was impossible no matter how desired it was, as has been demonstrated while waiting for a tribute match that goes around like the pending appointment so that Barça can thank Messi. The family would already have more weight than the team for the 10.