Lol! Good initiative by the people, but I feel that such parades do very little to help out of control gamblers fight their addictions. What truly matters the most is inner willpower in these cases.
Athough the main purpose of the parade is to educate people about the negative effect of slot games or gambling in general but on the other side, such a parade can be seen as a free advertisement for the slot game.
Simply because it is in public places, not all people who watch the parade are gamblers and I'm sure there are so many underage people who watched it and might be curious to know about what is being presented by parade because they never seen it before.
My opinion, it is something with a good main purpose but with a bad way, because there are many other better ways to educate people about gambling.
Slot/gambling education should not be done in public places like this IMO.