NOOO
I feel so bad for her, "I'm ****" and then just taking the octave down
Ugh, I would've been mortified.
I know people are complimenting how she handled this, but she honestly handled it very poorly. You don't tell an audience WHILE you're performing that you sound like ****, period. It's really unprofessional. I don't mean to kick her while she's down as I do empathize with her here, but in the future, she should just power through without verbally acknowledging her shortcomings.
As for the vocal, she just sounded sick here. I don't think her vocal damage from straining would've hit this fast, I think she'll be fine in a week tops.