Question: Wouldn't brain-only be better, at least at this time?

My intuition suggests that the sort of technology required for repairing a body of all the damage from the expanding ice would necessarily imply technology required for synthesizing a new body, body transplants are relatively trivial, and plus brain only would presumably mean a higher quality preservation of brain tissue relative to whole body due to being more invasive, right? (Counterarguments: small chance that body implements far more of our personality than currently realized, small chance the future decides growing new brainless bodies is unethical)