We ruled that jump was a “card action” given the arrow on the card next to the ability. But I’m still curious if jump is a move action and that actually lets Luke jump twice.

what are your thoughts and insights?

no, he can't. jump is a card action which also counts as a move action (for "charge" mostly).

"however, a unit cannot perform the same card action more than once during it's activation." swl rules reference, p.17

so while more than 1 move actions would be allowed, "jump" is no move action. it is a card action. the phrase"this is treated as a move action." might be misleading, but the rules are clear.

And as usual, "can't" wins over "can" when it comes to " can't perform the same card action twice" and "jump is treated as a move action" (and a move action can be formed twice)