I agree that this profile didn't need to have project protection.
But lest there be any misunderstanding, lack of good sources on a profile does not necessarily prevent the profile from being project-protected. In some of the projects I'm involved with, some very poorly sourced profiles are protected to prevent bad merges, connections to parents known to be incorrect, or to prevent inappropriate LNAB changes. (The profile may not have good sources, but WikiTreers are aware of chronic errors associated with the person, and we want to prevent those errors from being repeated.)