The only way I can see this happening is if you were visible to a lot of people in a highly populated zone (which for Gold Saucer mini games you are), someone for whatever reason figured out you were a bot, /shouted about it and you got reported 100+ times in the span of minutes by everyone in there.
Given how packed with people the GS constantly is right now with the event plus the new player explosion that’s unfortunately not difficult to happen there. Sorry that happened to you regardless.