Yeah, it was talked about pretty big on another forum I was on.
Honestly, the amount of purple and green clothes shown is no coincidence. Re-imagined forms of ballas and families are pretty clearly in this game, including a re-imagined grove street.
The keyword is of course "re-imagined" because it has nothing to do with the gangs in San Andreas other than sharing the same name and colors.
I think its genius on R*'s part for making Franklin affiliated with the Families, even if he is not truly apart of their gang. Even though it didnt matter to me, they will make a lot of fans happy.