Disclaimer: I am not a biologist or whatever someone who studies this stuff is called. But from what I've been able to gather, actually having the RNA be in it'

Disclaimer: I am not a biologist or whatever someone who studies this stuff is called. But from what I've been able to gather, actually having the RNA be in it's own membrane (an "organelle" they're calling it in the article) is not something you'd usually expect in a bacterium. If I remember correctly, they're more "soupy" inside.