The reason for Xavi dismissal is not as you said, friend, so far Laporta is quite satisfied with Xavi performance in Barcelona and even during Barcelona last game we can hear how Barcelona fans continue to shout Xavi yes and Laporta no, which means that the level of fan satisfaction with Xavi performance at Barcelona is of course very high, besides that when Xavi has decided to step down Barcelona, management and also Laporta asked for Xavi to stay at least until Xavi contract at Barcelona expires in 2025, and even before Barcelona continued to urge Xavi to extend his contract at Barcelona, the main reason Laporta fired Xavi was none other than Laporta was angry because Xavi said if: it is difficult to compete with Madrid for the title because Barcelona economy is in difficult conditions at the moment.

Xavi remarks triggered Laporta to fire Xavi, I think maybe Barcelona fans will also agree if Xavi actually at this time has made Barcelona actually much better than the previous two seasons, indeed Xavi failed to win the championship trophy this season but at least without financial support from the management, Barcelona is still able to compete fiercely in La Liga and even they can go far in the Champions League this season,  I think it will be difficult for other coaches to do like Xavi today who continued to build a team with a makeshift squad without any money to be able to buy new players to strengthen Barcelona, so, when Xavi was blamed for not being able to meet Laporta expectations, shouldn't Laporta be the one who deserves to be blamed for not providing enough financial support to achieve those expectations?