From what I have read so far I get the following impression.

1/- Too many circuits........ NO
2/- Too many classes........ Maybe
3/- Lack of discussion between venues about date clashes........yes
4/- Entry fees too expensive.........probably

Those of you old enough to remember the late 60s and early 70s will no doubt recall the great days of the Tasman meetings and the crowds that turned out for those and the competitors who made a great effort to make sure that they attended at least the meetings closest to their home town.