As I recall, Barcelona also failed in the Europa League last season, even though the chances are almost the same as this season and I think you know who won the Europa League title last season. If Barcelona is strong enough this season Barcelona should not be in the Europa League but in a competition that is greater than the Europa League.
It doesn't matter how weak Barcelona is this season in your opinion, but this season's competition for Barcelona in the Champions League is much fiercer than any other Spanish team except Sevilla. Bayern Munich and Inter are the two teams that Barcelona have found difficult to beat in the group stages, but that also does not prove that Barcelona are no better than last season even though in the end the Europa League is the only hope left for Barcelona on the European stage this season.
I think it's ridiculous to continue to assume that Barcelona's failure in the Champions League this season is because they are not better than the previous season. You have to consider several things, including Barcelona's financial situation and squad depth. But it's up to you, you are free to give your opinion about any situation for Barcelona.