I was recently asked my opinion of this article. I completely agree with this article. Positive reinforcement does not prepare children for the real world. Like the article says, "Virtue is its only reward." 
Compliments are fine. For example: "Cameron raised his hand and waited to be called on. Great job Cameron" These verbal acknowledgments identify and encourage correct behavior. 
Rewards for going above and beyond are also fine because adults receive bonuses and recognition for exemplary work. For example, "Thank you Mason for pushing in all of the chairs at your table without being asked. Here is a cougar coin." However, these should be given out rarely. Do this too often, and it loses its value. When I give a cougar coin (rewards in my school) to a child that took extra time to clean up someone else's mess, I know the next day there will be at least three children tripping over themselves to clean up so they too can get a coin. I only thank those children. The reward is for the child that did it without thought of getting a reward. Rewarding a child for doing what they are suppose to do will backfire. It teaches them to do the right thing only because they will be rewarded for it. 
Children need to learn at an early age that actions have consequences, both negative and positive. The child in this question was aware of the rule. He was probably even given a warning. He broke the rule, he faced a consequence. Blaming the school for holding a child accountable for his actions will only hurt the child in the end. 
He will never learn to take responsibility for his actions. This will lead to problems and conflicts in the adult world.

Read the article here: 

https://yourot.com/parenting-club/2016/5/16/why-our-children-are-so-bored-at-school-cant-wait-and-get-so-easily-frustrated?utm_campaign=shareaholic&utm_medium=facebook&utm_source=socialnetwork