But otherwise, a starship is basically a submarine: a sealed environment. So real issue there, in terms of keeping the crew alive.
A submarine has to keep many atmospheres of pressure out
. A starship has to keep one atmosphere of pressure in
. Very different design problems.
Still, basically, a sealed metal tube. For a society that has forcefields and gravity manipulation tech, it's pretty much a non issue.
It was cool. Can't we leave it at that?
I can't recall any other shot in a Trek movie being dissected as much as this one has.