There was a loss for Xavi because he got 2 yellow cards against Atlhetico Madrid. This allowed Xavi to miss 3 matches. Against Las Palmas, Cadiz and Real Madrid. A disadvantage, because at the moment Barcelona is in improved form. They haven't lost after playing Villareal.
Las Palmas and Cadiz are not tough opponents for Barcelona so I think that Xavi not being able to accompany the team during these two matches will not have a big impact, now Brcelona is in top form with high self-confidence and this will make it easier for them when they meet tough opponents. the quality is still below them.
Xavi will only be able to accompany the team during the E Clasicco, this will be very interesting.