Pointless
This is just a case of doing something to be seen doing it.
ISP's all over have said there's no risk of the internet falling apart. The evening peak doesn't come close to capacity of most networks and adding work on top doesn't affect it.
BT's core 21CN network carries internet and business MPLS traffic. The reduction of MPLS traffic would align with the increase in internet traffic (via VPN) for people working from home.
A pointless exercise in PR.