I think it will only be a problem if it can be legitimately imported into Kalos by the scanning standard of Pokémon Bank (missing the fact that AR was used to readd a move that could not be transferred). Otherwise, until they release a new one, there can never be a Pikachu with Surf. It's too bad we don't have one that I can easily clone and import whenever I find a trader for it, or even for a Wonder Trade exchange (which, while not done here, would still technically be an illegal Poké). I think it was a massive oversight on Nintendo's part to block it and give no way to get the move back after transfer as it loses its special reason for being there in the first place. Oh well, what can ya do? :)