Comms regulators know nothing about RF? I am shocked....
It's been clear for a long time that OFCOM is staffed by people who know more about Eastenders than electronics, and that their comms reg stuff is much more focussed on people saying rude things on the TV and radio than it is on anything wireless. Cabled stuff falls somewhere in between ("When in doubt, blame Openreach!")
However that things are as bad everywhere else is a bit of a worry. There is no danger that 5G is going to interfere with anything on frequencies so far removed and I doubt very much that radio altimeters exhibit the poor selectivity of a Midland 1001 CB radio.