I do know that. Show me an example of Dani using her powers affecting the whole world? Can you find one where she's using it on someone not within her reach? There is zero evidence in the books to suggest that she could be an omega whereas there is tons to support Jamie and Franklin. Dani would need to at least match them to even be considered a contender. Its a reach to suggest that she could be on that same level.
The difference between Jaime and Dani is that she's been using her powers since she was 15. We've seen her progression and the most advanced they've developed into is her psychic arrow, which is the sum focus of her TP powers, and the illusion she created in XForce 75 from Warpath's memories of his family.