You won't be mining for weeks at a time. Even for a solo player, it shouldn't take more than 5 hours to fill the FC tank. Of course, the better option is to get help to do so (and I still think we should have an option to be able to add NPC miners to do this - for a cost). You could combine mining and exploring. Wouldn't you explore each area that you stopped at in your FC?
So that's two jumps, with an hours cooldown per jump, plus 5 hours to fill the fuel tank after the second jump, so that's 6 to 7 hours to cover 1000ly. 65kly to BP, that's 3 weeks of just continuous jumping and mining to get to BP, no exploration along the way at all. And I am sure other players want to tag after me for weeks refueling my FC to get it to BP. As an explorer that's all I do, so essentially I have to abandon my job just to do mining for 3 weeks to get to the far edge of the galaxy, no thanks.
The mechanics essentially mean that a lone dedicated explorer like myself will not be willing to use one, the mechanics don't suit exploration at all.