Just my opinion.. but I associate the "X" theme with cheer extreme! (X-evolution, SSX, X-revolution, you just got X'ed out) I understand X is at the end of matriX, but i feel like CEA has used it so much it is a way to remember them by.. so I just kinda thought of them the whole time. Especially where it says X out..
I have a feeling that with that team whenever you say lady X (especially being in sm sr) they are gonna think you are talking about SSX or CEA in general, just like when teams call themselves sr/coed/jr/youth elite.. && then they are talked about on the boards most would assume CEA or when teams call themselves Sr black, everyone would probably assumes brandon..