Re: Is the NuEnterprise's secondary hull one big engine room?
No worse than Riker kicking the Viceroy into a bottomless pit from the bottom deck of the Enterprise in Nemesis.
Ooh, ooh, I can explain that, but you have to follow me on a dark journey to my even nerdier days of several years ago. Or just look at the picture below (CliffsNotes version: the fight took place on Deck 9, not the lowest deck of the ship):
My name is Ozymandias, king of kings: Look on my works, ye Mighty, and despair!
Nothing beside remains. Round the decay
Of that colossal wreck, boundless and bare
The lone and level sands stretch far away.