"e.g. a recurrence of the comms issues of the 7/7 incident or another Grenfell-class incident, because although mistakes may have been made, lessons have been learned"
Lessons are never learnt, all thats happened is a cliche has been parrotted. Lessons didn't need to be learned, it would have been obvious to an utter cretin that cladding a building in tons of flammable material was a bad idea and so hopefully some councillers will be doing porridge for it. Where saving money is the main factor corners will always be cut by the unscrupulous and the gutless too scared to stand up to their bosses.