He is featless, but Galu said to begin with when he ordered Dende to spare Good Boo that all "they" (including Vegeta) had to do to ensure the Boo tragedy won't happen again is simply to get strong enough that they could beat him one on one, and Vegeta saying in the Kanzenban ending that he'll have Kakarrot taste defeat one day shows to me that he's long since surpassed Boo arc Goku level. Galu desiring to fight Oob over Vegeta while fresh just seems to be so he can gauge Oob's potential rather than it being because Vegeta is weaker than him.