This is the beginning of a slippery slope. The next thing they will have to ban is the SAM's the stewards will need to start bringing to the events to enforce this rule. Then you'll have stealth drones and so on.

Honestly, I've seen a handful of these at events. Always operated by participants that were very respectful and very aware of avoiding any potential risk to the event. As the HMFIC at I talked to a couple of the owners about keeping them out of risky zones and they were agreeable and were happy to share the videos made with others and improved the experience. This really seems like a solution looking for a problem.