For what it's worth, my own biased opinion: if BSes are removed from the ID, might as well remove them from all of the Omicron factions.
Some notable exceptions: The Order keeps one (1) Osiris (from the SP story) and the Nomads keep their limited number of Marduks (see Osiris).
How will the will the rest of the factions respond to Marduks or the BSes of the major Houses (in the case of the unlawfuls)? A mix of bombers and fighters and a dessie/cattlebruiser or two for kicks and giggles.
I know everyone's got their own rationalizations on who should have BSes and who shouldn't: factions evolve, factions earn the privilege, issues of balance, issues of fairplay, realism (a truly nebulous term around here). Most opinions are rooted in various degrees of logic while others run more along the lines of "cuz it's cool, that's why". Nothing wrong with that argument either. We are, after all, here to escape reality and have fun.
But some folks like to take their fun, very, very seriously. And your notion of fun had darn well better follow their notion of fun, or forum drama and hard feelings will ensue.
Could we just put this to a serverwide vote (removing BSes from Zoner ID - let them keep the Corvo and the Dessie) and be done with it, so we have enough time to find another whipping boy faction to dump on before this server closes shop?