That's a dang shame.
It does make me wonder if one could not just add a fake "planet" for each real planet that is the planet's "orbit". Each "orbit" surface is generated as a void with a cargo landing pad with a ton of cargo bays, a cheated rocket silo (maybe more than one to bypass the animation limit) with infinite speed and fed rocket parts by an infinity chest, and a bunch of bots (or maybe a more elegant solution that isn't an obvious hack). This way you could drop items from a platform "in orbit" and any other platform that is "in orbit" can just request the items.
Platforms would select the "orbits" as destinations just like any other planet (with ~0 distance from the respective planet).
Not sure if it would be possible to somehow prevent the player from dropping to these new surfaces (Solar System Edge doesn't let you drop either but I'm not sure if the cause is the lack of surface or if it's a specific setting). From limited testing I've done just dropping items is not enough to reveal the map on its own so preventing remote viewing is not a necessity as far as I'm aware (although you can still hear stuff even if the map is completely dark which is odd).
This way the only thing that would need to be done is make a surface for each planet with those generation settings and therefore could completely ignore the cargo logic.
Am I missing something again?
Cheers.