We're talking about giving factions ships that are APPROPRIATE in-RP for them. Which neatly destroys your entire argument. Please read next time. And use some proper punctuation and spelling.
In case you haven't noticed, it's not exactly easy to get players to join RP-heavy factions. This is why everyone wants to join outcast factions, they have the best pewpew guns and ships. When was the last time you saw a factionalized Bunduschuh around?
Factions, and the players that put hard work into them, is literally the only reason that I stick around anymore. If the server were all indies, I would leave immediately, no hesitation. The presence of factions and the good RPers in there make the game worth playing. But you say there are good indy RPers? OK, fine. But they choose to RP well. Factions are expected to RP well, and they face consequences if they don't.
I would definitely support unique ships for factions. Make them bigger, better, more capable, whatever. Just make sure that the people flying them know what is expected of them when they are flying them.