yeah coz obviously making unwanted copy characters is gonna make people buy the DLC hoping that they make a decent DLC with the real requested characters
Coz again i am not even gonna say MMH coz it's too obvious, but batgirl is nowhere to be seen in DLC requests for the game really - very rare, i don't know how popular she is (i dont read bat comics) but i am sure that Zatanna, Canary, Blue Beetle, Swamp Thing, Captain Cold, Gorilla Grodd, Darkseid, Brainiac and many others are much much more requested which means they are much much more popular. And really noone in GP knows or cares for Batgirl except maybe that her name is BATgirl and that she must be Batman's friend or something
but really she as a seperate character is not what i'd call one of the most popular ones in DC!