I think the group finder for starting planets should be lowered to some level 6.
It does not make sense to go back to your STARTING planet at level 10 to complete some quests if you can queue for an instance or warzone and get better gear.
It will also increase the group experience a lot i think if you meet up with other people around that level. You get a lot more XP, social points, die less, ...
The problem is basically that it was designed for FP/Operations/etc... and then someone probably said "what about heroics" and they tacked on "planetary content". Since the first FP is level 10, the tool starts at level 10.