I am personally satisfied with Barcelona's performance last season. They completely dominated La Liga and managed to win La Liga. Hopefully the Barcelona team will improve themselves tremendously this season and try to do well in the Champions League as well.
It doesn't matter how far you have watched Barcelona's development, but if you look back at their ups and downs, starting from the financial crisis to building the ideal team at this time, still for next season it might still be ideal to occupy the top position of the La Liga standings, but in the UCL of course the challenges are different. Likewise with rival competitors whose clubs have developed earlier. The point of Barcelona's renaissance began when Xavi arrived and tried to fix the mess.
Barcelona only needs to recover finances in order to maximize opportunities for hunting players. Xavi was just doing what he could so if he didn't come then it might not have had such a great effect. Like it or not, Barcelona needs to be grateful for the services that Xavi has performed so far, both the advantages and disadvantages.
I really, really agree with what you said regarding Xavi Hernandez, who was indeed the turning point in the revival of Barcelona's performance, which had experienced a serious decline. In fact, I think Xavi is really a young coach who is very talented in coaching. He was able to bring Barcelona back the Laliga title after 3 previous seasons Barcelona had always failed to win the Laliga title. But Xavi was able to maximize Barcelona's performance last season because apart from that he gave up not fighting too hard in the UCL. And only focus on Laliga. So for this season I personally also hope that Xavi can bring Barcelona to win not only in Laliga but also in the UCL. Well this is difficult and very difficult. But even a club like Inter Milan who we didn't expect to make it to the Final in UCL then Barcelona club should be able to do it. But the club's financial condition, which has yet to recover, is very worrying. So that Xavi can continue to bring Barcelona to win the title in Laliga, it was good enough last season. And even this season Barcelona should also be able to do the same thing. Because the rival, namely Real Madrid, has now lost their best striker, Benzema and has not even found a striker at the same level as Benzema to fill the void. Vinicius Jr may be a great striker but Real Madrid need more than that to improve the club's form.