For future reference, you gotta do a better job making sure ESes know that regional rules are being used. Three of my five events had questions/used rules for states/nationals (including the event that lead me to ask about it in the first place).
I appreciate the feedback. I assure you this information was communicated with our supervisors. Additionally, the rules are clear that invitationals should follow the regional level rules.
To give you an idea of how seriously I take event quality at our tournament, consider this set of customized Event Supervisor Guidelines
that we issued to all of our supervisors and that has been posted on our tournament website since December.
At the end of the day, the nature of invitationals is that tests will only be as good as the participating teams are able/willing to provide. Different teams bring different levels of experience at running events. Our hope is always that each puts forward the highest quality event possible.