Yeah, I'm aware you can trade between the generations (I always joke that a Pokémon caught in B2/W2 would meet itself after the time machine trading LMAO), but I don't recall Genesect ever being a giveaway for the original B/W. I've researched the Drives and apparently they CAN be found in B/W, which is new information to me. Of course, this also means it can be traded into the game since you must have Genesect to get the drives in either Black or White.
Amazing that even if you know everything (theoretically), there is still something to learn. :)