KAM is the cheat code to GR Jedi teams in the raid and KB needs KAM more than Lumi. Lumi can max score without KAM and Shaak. Hell, Lumi can max score with an undersized team (Lumi, Kit, Shaak). Trying to max score KB without KAM and Shaak is awful.
If you're doing 5 raid teams, you're most likely doing:
Gungans
QA
Maul/Sid
Lumi
KB
There isn't really another way to split them to have 5 good teams. This means we have to do two GR Jedi squads, or you skip one GR Jedi squad, settle for a lower score and put KAM and Shaak with Lumi.