Ah, well, so much for the galaxy at large now having explicit knowledge of the Brood. It can pretty much be assumed that there were no survivors after that. An explosion of that force would probably collapse the pocket dimension on the Titan. Which results in the Titan literally popping, like a water balloon. Except instead of water coming out, it's excited-form aberrant mana. Which results in a nearly equal explosion, which can persist in hyperspace.