It also lets you clear stress after moving through an asteroid, making the board much more open.
I'm pretty sure you meant debris field, and this is a valid point that I had not considered. Having heard it, I think Kanan is a solid pick, but I probably still prefer C-3P0 (although I could just be digging my heals in stubbornly, at this point).
Having flown this a few times (and Asajj a great deal) I can attest that you will hit a lot of debris while slinging your large base across the board with 3 banks/sloops. Kannan allowing you to destress and take an action, whether focus or boost is key to winning with Rey.

