[quote=@AtomicNut]
I am puzzled by that response. I saw nowhere that magical girls  need to be solo.
[/quote]

They don't, but when one of light side girls has an edgy streak a mile long and the the other is more condescending than anyone has any right to be, I don't see how they can work together at all.

The most the two of them achieved is creating trouble that didn't have a reason to exist.