The UK is an island nation that's reliant on undersea cables. If those cables are cut (which is something that Russia seems to threaten) your only fallback is satellite connectivity - so protecting that connectivity is pretty key to ensuring e.g people can access their money.
I would guess that was how Wes Streeting was briefed (and then completely bungled in public comms).
I would guess that was how Wes Streeting was briefed (and then completely bungled in public comms).