I think there should be an option to go to the system view of your target system, and manually select which star you jump to in the system. of course, if you dont have the system data you have to default to the primary and deal with the trek. i just dont see an economic reason for the primary star in a system like LHS 3447 to be ~105k Ls away from any of the stations...
There isn't an economic reason for it. As has been noted in numerous threads on this subject, the hyperdrive locks in on the largest mass in the system, and uses that mass to pull the ship out of hyperspace.