Yes, but: redwood burls rarely grow roots when cut from the tree. Burls are primarily latent buds and a ton of stored energy...they can sprout readily just being placed in water. Or sometimes just being set on a shelf!
I'm not in CA but, for what it's woryh: when I was in Kansas City, I would repot my coastal redwoods about now: late January - mid-February. I'm a zone colder now in Chicago and will likely move that schedule to early March. Basically, I repot a month or so before I can expect them to start more active growth. That gives the damaged roots a chance to heal before they start migrating outside in my rainy season.
I've had trees suffer when I've repotted during the rainy season or while they were in active growth.