The OP is not talking about that mess of an idea of FD's that is non-inclusive and ultimately a waste of time and resources IMO. Instead, they are actually referring to something that is more inclusive and will have utility for both PvP and PvE players regardless of the mode they choose to play.
Well, while I wouldn't necessarily be quite so scathing of what little we know about fleet carriers as yet, you are correct that I am not talking about an alternative, competing implementation, so thank you.
Perhaps I should have titled the thread differently, perhaps the mere mention of fleet carriers was enough for people to think that it's FD's version that I was talking about. It isn't, and that should have been abundantly clear from the OP and my other posts. And if FD create fleet carriers with the same limited scope as I have proposed then I doubt they will gain much traction.
To be clear (and I know you get this), I am simply suggesting a small mobile base / carrier - call it what you like, that an individual player can use to keep a small number of limited size ships close to them should they choose to roam the galaxy so loosening the grip of a 'home system' and opening up more of the game world. Simply giving players the ability to have a few different tools with which to play the game without needing to wait for ships to transfer to them.
My suggestion makes no mention of multi-crew, which obviously would be central to squadron carriers, it's much more aimed at a single lone player, although of course, as you rightly point out there would be no mode where they wouldn't be available, and no restrictions on how they be used (within their given capabilities) other than the player's imagination and goals.