With a few exceptions what "and another thing" nonsense.
We should celebrate these events and have more. Do people know how tedious and suburban it sounds raising concerns about fire engines, traffic, parking, crime, too packed etc etc etc? Why live in south London if you can't put up with events that generate such energy and wide appeal once in a while? For me it was a great event and mildly exciting to see traffic jams on roads that usually see 10 cars per hour.