With the full support that Barcelona has, Barcelona should have won titles in every competition. moreover they only play in the Europa League which is basically the second tier in Europe and therefore, they should have a better run in the Europa League than in the Champions League.
But indeed, to achieve this achievement will not be easy either, because Manchester United under Erik ten Hag is a better team than before.
Barcelona has spent a lot of money this season (even to make it all happen, Barcelona has to sell a few percent of their TV rights), so they should be able to get pretty good gains with the squad they have now. In La Liga, they still look to have good potential to become champions, but on the European stage, I think Barcelona has already failed. Eliminated from the Champions League in the group stage round, it is not a great feat.
Even though they do still have a chance to get the Europa League trophy but it will not be easy for them to get and I think some people must have doubts about that. If in the end, they were able to win the Europa League, it still doesn't cover the fact that they have failed in the Champions League.