This thread is 3 month old now, post nerf LI is nothing now.
Darth Jadus was super hard before 1.2, it's such a challenge to beat him. But should Bio fix it? Yes.
This is FP, if its drop does not match the difficulty, then it's a problem.
You just had to LoS/interrupt his cast, wasn't very hard (note that's pre 1.2 on 2 operative i leveled)