Hilarious that they think they can prevent motivated people from accessing information using technical measures. China has been working on this for decades. It's a lost battle. Shadowsocks, V2Ray, xray; protocols like vmess, vless, trojan, etc.
The British government, for all their effort (London has a higher geographic density of CCTV than Beijing) is wasting their time competing for the gold medal at International Totalitarianism Olympics, even the the world's current undisputed champion is losing the internet censorship battle, and always has.
Central planning doesn't work and it never has. That includes central planning of what your citizens are allowed to see, hear, think, and feel.