I think you're missing the point a little bit because 'surface wing missions' ARE core gameplay.
You're talking about the presentation of content .. but putting that before the core mechanics, is putting the cart ahead of the horse.
Horizons was ALWAYS going to be a rough ride imo. If FD feel the game's in a good place now that's probably because they feel they might be able to weather the storm.
Not exactly, for me surface wing missions for me is just another method to execute the core mechanics. And this should be about BGS, PP, trading states, System states (but some that really matter), Mining and Battle. Wing missions, Wing surface missions, squadrons, would just be different ways for people to organise to work with the core mechanics. implementign these emchanics without a proper core, what will they be good for? it will be similary dead as Multicrew, because none of the core mechanics atm make sense to be done in MC. Mining? doesn't makes sense. Trtading? doesn't makes sens,e 2 people with each a ship are still more efficient and effective. MC is badly designed not even fitting the shallow designed core mechanics.