Honestly, she could probably rearrange it so that she doesn't have to do the key change and can just sing the last chorus in the same key as the rest of the song. Or drop the song a key lower. I'm happy she's doing it again, though... As long as she does it at my show, I'll be happy.
Did she do "I Miss You" again too? Because I just tweeted her like, 3 days ago and told her to add those songs back in, so... Maybe she's reading my tweets.
EDIT: Also, does anyone have a video of her doing "All I Ask" last night?