To put this debate to rest maybe FDEV should communicate with their playerbase/customers - something that every modern tech company does. They will do market research which includes looking at the industry and oh, yes, you guessed it, actually asking what their own customers would like to see in the product.
Old school runescape have this feature INSIDE the game. The devs will post a poll in the game where players go in and respond, all FDEV will need to do is implement a poll in the game (Or spread this poll into the forums, subreddit and main discords) and this poll will have a list of features such as: 1) Base building, 2) Ship interiors, 3) Fully atmospheric worlds etc and players can set their priorities there. Bish bash bosh jobs done, now we know what players want.
Of course we know the real reason that ship interiors aren't coming are the same reason that the 'atmospheric' worlds are pathetic - FDEV don't have the capability. I don't know about you, but when I heard we were getting Atmospheric worlds I expected something more than just the normal horizon's world but with a tinted skybox. There is nothing functionally different between atmospheric worlds and non-atmospheric, no difference to the flight mechanics, no burn on entry, nothing (except for 30 static plant doodads that sit there and do nothing). If I am wrong please let me know.