Every feature is a step up the ladder to the next feature or a feature down the road.
I won't deny Powerplay is a feature I don't touch.
however, it's a patch and extension to the background sim allowing players to interact directly with the "politics" of the powers, without being able to 'mess up' the direct story 'hand' of frontier and how they want it to progress.
It gave faces, names, to many of the intrigues of the galaxy, and was the first step to fleshing out the bare-bones starfield simulator with an excel spreadsheet at the end of the journey which was Elite 1.0
CG's allow for a "poll" to ask gamers how to develop some story elements.
CQC battle tested the fighters and added more environments to the main game, making 2.2. ship quicker.
Passengers may feel lack-lustre, and as one youtuber said, how can a text file and gui take so long to develop, it's not like they are creating the interior of these cabins.....which if you know anything about how ED is put together, is exactly what they were fussing over. THEY HAVE BEEN DESIGNING THE INTERIOR TO THE PASSENGER CABINS. Just looking at the store icon gives you a rough idea.
Again, if you look at the proposed "features" of the finished product (in years to come), you have to start stubbing out those interactions in advance, working the exact in and outs, before you flesh them out with the walking around, gaphics, networking and interacting.
Heck some of the passenger "interaction" from the upcoming 3.x when walking around was already stubbed out in the 2.1 comms panels and "NPC" faces.
NPC's fighters stubs out 2.3 Multi-crew AND 3.x multicrew when you can physically walk onboard a ship (sneaked in or invited). The 2.3 HOLO-ME allowed telepresence to make up for the shortfals of 3.x versions of actually meeting up transfer commanders physically.