Like everyone else in the town, I feel the carnival organisers are just not up to the job and should be replaced.
They seem to not be bothered with generating interest.
I gave them the contact details, well in advance, to get the 501UK garrison to do a march in the parade. You would have had characters from Star Wars and raised money for children’s charities.
Unless there is a radical change in the organisation, the carnival is dead in the water.