This move totally sucks. Just look at how small the strike hitbox is! And poking out her staff turns the whole thing into one long hurtbox!
...Which fits her, really. G-Spring is totally a joke character in the Goddess Fights. No wonder she loses to Forest all the time.
Anyhow, think Ishiyumi-sensei didn't intend for the original art to be a 'fighting game' attack, but then he saw how much it looked like one (a poke attack) and couldn't resist putting the hitboxes on.