Just admit that they were really bad this day and it have nothing to do with them having fun or not
too much people are trying to defend artist with the excuse " they were just having fun it's normal that they don't sound well"
and it's honestly the dumbest excuse ever
you're telling me that they can dance for 3 mins and sings normally, or even dance and sing for an entire hour and still sound not bad
but jumping 1 or 2 times during an encore stage suddenly is an excuse for them to sound bad
i'm sorry but it's not
You should normalize the fact that there's some idols who have better control of their voices, and are better vocalist
and other who are below average and sometimes their flaws are highlighted and just admit this
and stop always protecting idols and defend them, for their job by saying that they were "just having fun " that's why they messed up