If the world cup ends we'll know if Barcelona is good enough to win the Europa League, Barcelona is seriously interested and working harder in winning laliga league, Barcelona can't win more than a trophy this season because they are not so strong
Do not conclude that Barcelona's strength this season has only been seen in half of the season. But let's see how strong Barcelona will be after this world cup or when La Liga and Europa League restart this season. Because every team still has time this season to make changes for the better and it's still very early to conclude anything for all the teams in the two different competitions.
You're right, it's too early to conclude that Barcelona won't win more than one trophy this season, and it's also too early to conclude they will. Competition is still very tight in La Liga and also in the European League, it will not be easy for them to win the championship which is still very long. Also other teams will not allow any team to win the title easily. Challenges are still waiting for them ahead.
I remember that last season barcelona has been predicted to win even europa league but it was going out caused by lose from frankfurt. I think that people shall not over expectation about barcelona. Just let the team to do the best. Barcelona is not yet winning la liga. Real madrid is always following barcelona at the second position. There's no reason for barcelona to get the trophy until the end of season. The fact that it's going out from champion league. Barcelona may get the same result in europa league too.