THe new Devidian arc was a missed opportunity to make something in the interiors useful. Instead of sending us to K7 to study the data we collected, we could have done it in our Labs (Engineering deck).
True enough. We can hope for this kind of thing in the futurte I suspect.
If you notice the only time we use ship interiors at the moment is in an instanced area in diplo missions. An area not part of the main interior. I suspect they have problems that we have differences and they struggle to incorporate that.