Jedi Luke no Rebal tag why put him on raid not CLS?

Its been announced that he gains the Rebel tag while in this raid

Presumably because less people have JKL leveled up than CLS.

also, normal team synergies don't seem to matter for this raid (supposedly), so he can be used with any raid team (purportedly)

Also, because it’s set on Endor, not hoth.