Because the wish was made before the Android Saga. In “Resurrection of F” the Pilaf gang didn’t know about the 2nd wish.

Actually it’s the oposite, Bulma’s hair the one that’s supposed to be purple like her father. This based on the original manga colored pages of course.

Nah, she’s wearing her uniform from Dragon Ball with Pilaf’s insignia, that’s Mai alright.

And get the worse verision of the 3? No thanks, the only thing worth in there is the Nerve.wad... no, not even playing it inside BFG, just the file for other source ports.