First and simplest, the Viet Cong suffered a military defeat, he reported. Its missions proved suicidal. If they had intended to stay in the cities as a negotiating point, they failed at that. The Vietnamese army reacted better than even its most ardent supporters had anticipated. There were no defections from its rank, as the Viet Cong apparently had expected. And the people did not rise to support the Viet Cong, as they were also believed to have expected.
So did the deep state get to CBS and Cronkite and bury the reality report!
His summation of TET 68 is partially correct, but how they failed wasn't detailed.
They may have 'intended' to stay in the cities. But, I do remember my unit (199th Light Inf) going into the center of Saigon to the Cholon district and kicking their behinds out of their entrenched HQ in the Phu Tho racetrack and over the next 3 months playing hopscotch chasing their remnants all the way over the Cambodian border at Tay Ninh.
The Gyrenes did the same at Hue up north kicking asz and sending them packing back over the border in pieces.