In my eyes (and I clarify My), battleships and above are purely instruments of roleplay, and for them to have any prowess in battle wouldn't matter to me. I'm pretty sure they're already pretty useless in PvP but I don't know since I haven't flown one yet, but for all I care we could make them PvP useless and purely tools of roleplay.
However, that plan leaks more than a net and a much simpler way would be to apply for battleships the same way you apply for an AI-ID or The Barge.