You're right, all credit to her and may she have a long-lasting career in the music biz (if that should be her choice; if she wants to go to law school instead, then that is fine too). I find the song nondescript, her drumming is fine. You really can't blame the children for the sins of adults.
I'm sure Dave Grohl and his bandmates are fine people, but just like Nirvana did zilch for me, the Foo Fighters leave me cold too. Their music is neither here nor there for me, I don't hear a distinct style. What is it, power pop-grungy-punky-rootsy-hard rock-feel good something? I have more than half a dozen albums of theirs, but - like with U2, Pearl Jam, Coldplay or Green Day (of which I all own a lot of albums as well) - I can't latch on to most of it. It must be a generational thing.