I guess if you make all the bases indestructible and not interactive to anyone other than the owner, then there might not be too much of an issue. Aside from the usual camping/instancing issues of meeting people.
If they had landing pad defence to blow up anyone that was loitering, I can't see an issue. Also the owner could be gone for weeks or months, so would that person camp there for that long waiting on the off chance that they turn up. I can't really see it myself.
They make no sense in the context of the game for 2 reason imo:
1. It's a spaceship game
It is not a space ship game. It is a galaxy sim with gameplay elements such as piloting your ship and SRV. It just so happens that the piloting of the ship is the main part of the game currently. I myself have a home station where most of my ships are stored. Having a personal one would be nice.
2. What would you do there? What is the point in a game where everything revolves around you spaceship. There's no cargo/material/data storage, there's no player economy or trading, there's no passive income generation.
It only revolves around your spaceship because they haven't added in anything else. Personally I would like material storage, cargo storage (this would be fine as the base would not be attached to the BGS), more and bigger synthesis options such as module building given the right materials, commoditiers and base option, being able to see your fleet in one place could be nice too. A place to hang some trophies and stuff. Maybe a meeting place for you and some of your friends. Maybe there could be joint built bases. But the main thing, it is something extra to do while you play the game. Something to work towards which you own and biuld up over time which isn't just another space ship.
It will be similar to any other MMO with player housing. In Lotro, it doesn't really hold any purpose apart for a place to stash stuff.
I just personally don't see how it all fits. Maybe in 5 years time when we're big game hunting on atmospheric planets, but now... Nope.
I can see how it fits, as to whether it and elite feet will be in 18 months time is another matter. I also would like atmoshperic planets and big game hunting, but I would also like to get out of my pilots chair and do stuff. There are plenty of places in the game that could be explored on foot and could add a lot of extra gameplay from a very different persepective.