Ship interiors would be cool, but it makes sense to hold on until they have a chance to develop meaningful activities there like combative boarding and whatnot. Which then opens cans of worms with instancing, rulesets, balancing, knock-on effects, zero gravity locomotion, passenger bays, etc to deal with. I think there a LOT more work in doing that in a worthwhile way than people think.
The update seems to be focused on gameplay loops that are an extension of what we have now: going out and doing stuff. It stands to reason that more effort be put into environments in which these loops take place -- buildings, stations, bases, outposts -- without throwing 38 detailed ship interiors into the mix, some absolutely vast.
It makes total sense. Do interiors justice than a proper ship-focused update, rather than piddling it out as another half-baked feature/
Just the bridges would have been nice as a compromise, but if they reckon it's more worthwhile putting that effort into other interiors then fine. Regardless of how we might criticise decisions they make and say "they don't play their own game", one area they definitely have more insight into is how their product is developing behind the scenes and the workflows needed to get it where they want it to be. We have no idea what they have to deal with, no clue as to what circumstances and internal things they're responding to. All statements about "they've had X long to do it", or "this should be done like this" is just us blowing smoke, Dunning-Kreuger style.