Ask and ye shall receive. Or at least, if fewer people ask, there's less chance of FDev bothering, and if more people ask, there's greater chance of FDev considering.
After the current issues are sorted out, my two most desired features are VR on-foot, and then ship interiors.
I think FDev will likely stick with the current aesthetic styles for each ship, and apply them throughout the interiors, which I would like, and which I think most players at worst would not have an issue with.
There's a lot of opportunity for new gameplay onboard ships, but even if no gameplay were to initially be included, I'd be content being able to walk around my ships in the meantime, if it meant FDev taking their time to get the gameplay right.
So, to my mind, the more threads on ship interiors the better, as it would demonstrate to Frontier that there is a significant and sustained interest among their player base in having this feature.