It's very obvious that her performance was horrible on purpose (even though she is very lazy in general). She just wants a bit of attention like the old days. Hopefully it lasts more than 2 days.
Youre so used to a miserable performer you think that people do this on purpose.
Mariah: "People don't know how hard it is to sing when you have no sound coming out of your ear piece. It's nearly impossible to hear anything and it just can't be done."
GMA: "So, how did you perform in the 90s hundreds of times without an ear piece?"