What she really restores isn't his body but his soul and his humanity, as she afterwards takes him to Elysium, which also is the promised reward for detonating the orb. It's not a fix it for a broken body, it's just a particularly nice place in the afterlife. So no, she doesn't meddle in mortal affairs as the person she restores is afterwards removed from fate. Unless they changed this - which it doesn't read like - if he wants to return to the world, he has to stay a squid.
