Dyvim, if we're really going to go 100% by the lore, then Jedi should be forced into tank and healing only, and never dps. Rationale: Yoda is quoted as saying the following:
"A Jedi uses the Force for knowledge and defense. Never for attack."
This happens in Episode 5.
Why do I say this?
Because the ONLY rationale you can have for throwing projectiles is that it is an aggressive action. By "aggressive action", I mean that it hurts other people. Which, by extension, means that DPSing a foe is considered a dark side choice.
The reason you don't see light sided Jedi use force telekinesis to injure a foe physically with projectiles in the films is precisely because, in the films, light sided Jedi avoid conflict at ALL costs, and when forced to fight, only fight defensively, prefering to disarm their foes rather than kill them.
Let me put it this way: What quality does Force Burst have that Project does not? How is Project a dark side move, while Force Burst is light side? I don't exactly remember any light side Jedi using Force Burst in the films either. And for that matter, I don't exactly remember any light side Jedi fighting aggressively (Read: Injuring, ie dps) either.
If you would prefer force usage be limited solely to crowd control effects, then by all means, roll a Jedi Knight. You can force push, force leap, use the force to increase your combat prowess, et cetera. Sure, they wear heavy armor, but I'm pretty sure Obi-Wan wore armor in the Clone Wars cartoons.