My honest opinion, the recording of 10-year-old Sills was not of sufficient quality to judge whether she was better at that age than Jackie Evancho. Not saying she wasn’t.
Why is a soprano singing an aria written for tenor?
It makes no sense.
There are easily a dozen soprano arias a young soprano could tackle to showcase her talent.
Choosing this over hyped over played tenor aria just smacks of pop opera dumbed down to appeal to the masses.