The leftists went to court to demand the Klansmen be punished for their violence against poor, innocent, armed Commies. Even with the special rights the left has, this didn't fly. The Klansmen were acquitted. Back to Kent State. The average age of the Guardsmen was almost certainly lower than the average age of the students.
Liberals make good mobs, because cowards run in packs.
If you have ever been on the receiving end of a howling mob, as most active rightists have, you will realize that it takes a lot of maturity and experience to face it calmly. I was glad to see someone bring this up. I have seen it in action for many years. This does not sound like a quota. All the agency says is that, if you follow the rules they don't call rules, you will be safe from government action.