Personally I have no problem about cruiser usage by unlawfull/pirate factions since they could build their own. However this could start something where every faction wants his own.
Since Gallia is a dead place and Brigands could be the only one active enough unlawfull faction there, I support the idea.
Some additional things what could serve the gameplay isnt hurt. They couldnt use a cruiser for piracy but it could help them to act better against GRN, what is dead already...