Hoist by my own petard!
But if you do choose to operate outside the carrier's unrefuelled radius no amount of planning will save you from needing more fuel. And even inside the shaded area, there's a limit to the amount you can move about without needing more fuel - a bigger limit the closer you stay to home, but still.
There will be carriers stationed throughout the non-shaded area of 777Drivers map. They are the dssa carriers and they will sell tritium to anyone who needs it to get home.
I think people are fighting for their own playstyle here. Those that want to solo it and not have to plan ahead and want to take their personal spacestation anywhere and at anytime, and those that want carriers to bring lots of other gameplay loops into the mix, like mining and cooperation. Things like the dssa can link both play styles together and make it work for all. I hope frontier don't re-balance things too much to favour one over the other.
Mining yields need to increase significantly to appease the solo guys. Fuel efficiency needs to stay as it is, or decrease slightly to give miners a purpose and give carriers the challenge needed that counterbalances all the other benefits they offer an owner.