The CCTV piece was mostly neutral on bitcoin as it REPORTED a phenomena that most people never heard of. It's a stretch to say CCTV supports bitcoin.
The CCTV also spoke favorably about Fa Lun Gong (FLG is a religious group), a year before the government started to crack down hard on it. At the peak FLG had nearly 100M members, nowadays FLG hardly even exists in China.
Also, remember the Chinese government is not a tightly united group, there are tons of different interest group and leftist/rightist organizations battling for power and controll, within the umbrella of Chinese Communist Party. Sometimes the Chinese government will seem to be favorable to something, and then over night, another group takes over power within the party, and start cracking down on it.