I would politely disagree. Waze supports passes that users can toggle off/on from settings, and I think it would be easy (for someone who has the required access) to create one for each LTN. Other editors can then correct the LTN filters, which are now set to “disallowed for all vehicles”, to allow traffic with the matching pass.
Do you know who has access to create new UK toll/HOV passes?
I had asked the same question in a separate thread, but had no responses.