It's sad because Keiko's voice is in good condition but her singing style now is, I'm sorry to say, pretty atrocious. Over-emoting, extremely inconsistent larynx placement, vowels that are too wide, shouting/volume issues... I could go on. She's clearly not the same as when she's singing Kajiura's songs in the past, for better or for worse. At least her style in FJ lives are pretty unaffected.
The new song Kajiura wrote for her is all over the place. It's so hilariously bad that it sounds like something she pulled out of her trashcan of songs that should not have been written.
Glad to see Keiko's enjoying herself at least.