Earlier quoted context omitted.
I think it's more about the cell towers being cut at the same time as their local area. Where it's easy to anticipate that hospitals/police stations/fire birgades will need a special connection to the grid, it probably was harder 20 years ago to realise the numerous new cell towers also needed to be put on a separate connection. So they'll get cut at the same time as the companies and the houses in the local area.
In France, the talks about the rolling blackouts were acompanied by assurances that private homes wouldn't be affected, only industries. So they should have some kind of ability to target at least a kind of user. I don't know if cell towers qualify as industry or their own, separate kind. There's also the fact that there has been a massive rollout of connected meters, so, at least in theory, they could target individ…
There are enough people people who hate linky for no reason, I hope EDF won't give them an actual good reason to do so.