No, Cardiff Bus survived after the 1980s deregulation. All that was needed to survive was never to have elected a council that chose to sell it for a quick buck, like most did, in Wales as well as England, or have appointed managers that failed to compete with private operators like Stageroach and Worst.
If they'd sold it or gone bust, Cardiff Council wouldn't have been allowed to start more bus services themselves again.
Indeed, untested in court, but the allegation is there, contradicting your posts earlier. That's all.
Also, Giuffre's statements on her age at the orgy differ, but the pilot's notes put it in early July, before her 18th birthday.