1.I said I put it to a vote to see if there was anyone who wanted the old races. at first i think it was humans or something. then some said like an enclave of all citadel races. I put it to a vote and two people were in favor while you were cool with the lizards and squids. And since they majority don't mind about the ME lore errors I see no reason not to allow it. 

2. I like it, only problem now it their back story,name, and what planet/mooon/space station/fleet/whatever else that they call home.