This is a tough one. On the one hand I like it when FD step it to provide little bonuses for player groups who've organised unusual in-game stuff. On the other hand what they've done here isn't merely to give a group something that's not achievable because of a lack of in-game mechanics, like a custom skin, faction name or memorial station name. Instead they've taken something that is
specifically prevented by in-game mechanics and permitted it through an intervention. That doesn't sit easily with me.
Here's how I see it:
If the CMDRs who organised this expedition are definitely, unquestionably the first to reach these stars, and
if there is
never going to be an in-game mechanism that will allow CMDRs to visit and safely return from these distant systems then, no harm has really been done. Nobody else would be able to tag them, and if it's the difference between them never being tagged and being tagged by the expedition crew then I'm happy for the tags to be there.
Two caveats come along with that: firstly, the certainty that these CMDRs were really the first to jump there must be absolute. FD will have the telemetry on this so hopefully there should be no doubt there. Secondly, there must never be a drive technology improvement, Thargoid witchspace gate generator, Hawking radiation scoop or any similar mechanic introduced to the game that would allow these systems to be reached and returned from safely. If there is, then those tags should be removed once there is a legitimate way to claim first discovery on the systems.
Also, small side note, but once you have a scanned an object/system, and died, you can't go back and rescan it, because its already known to you. So, should it, in future, become possible to get there and come back, they would not be able to try and be the first to tag
what they first discovered.
(emphasis mine)
The key is the meaning of "first discovered." In a meta sense, we can all appreciate if a player was the first to jump his or her ship into a particular system, post screenshots of the system map, the ship on the surface of its bodies etc. But in-game, it has a very specific meaning: the first person to scan the body, return safely and sell the data.
So as far as community and promotion of the game goes, these guys got there first. As far as the in-game fictional universe goes, they should be dead but for the Hand Of God reaching in and moving the pieces on the board. Whether you see
ED primarily as a fun game with a bit of mutable lore attached, or as a 30-year work-in-progress fictional universe with which we primarily interact through a videogame, may to some degree dictate how you feel about this decision.