"We feel that it is a safe vehicle to fly," said Joseph Cuzzupoli, a member of the oversight panel headed by former astronauts Thomas Stafford and Richard Covey.
There you have it. The dictionary defines "oversight" as "An unintentional omission or mistake" or "Watchful care or management; supervision."
It depends which definition the panel is using. Perhaps they are there to make sure there are "omissions or mistakes"