I was there today, let me just say this:
I was so dissapointed in Mariah today. I've never felt like this with her before, maybe it's cause I saw it with my own eyes, but she's really lost it.
TMB was good, don't get me wrong. It was still just good though. YDWTD was completely lipped. The praise for the song is great, but the praise for the performance should cease.
I was so excited when I heard the angelic classic ABMB boom out of the speakers, because I knew this was the last song, and it's something Mariah has done well in lately (last year GMA). This performance was honestly just sad. It was just a true testament to how much her voice has deteriorated. Then to have her be exposed for lipping those notes when no sound came out during the climax....wow.
I love Mariah, I've stanned for her for years, but seeing this before my eyes was terrible. I really hope the new album is amazing, which I'm sure it with be, but she needs to get a handle on her live performances.
Sorry about the rant.
She could've been more strategic with the setlist though. Sung TMB, I'm That Chick, Obsessed, or other songs that require mellow vocals 
Her performances are pretty much just bad starting with anything from Rainbow era onwards (there are of course many great exceptions but the majority are bad). I wish I had been able to see her in her mid 90s prime but I guess I woulda been too young to remember it 
I'm so excited for the next week. :
And what is this mess going on in my absence 
