But the issue is that the single rider line can benefit BOTH the park and the rider if done right. Single Riders was actually made popular for Ski Lifts way before theme parks, this is due to the high number of true single riders that are on the slopes by themselves. Parks saw the huge increase in capacity and adopted the concept to attractions. One small thing that was overlooked was that there are very few true single riders that makes this line highly unpredictable in the industry but the benefit of increased capacity is still large.
Honestly, when done right, a single ride line that is monitored and closed off when full compared to the normal line to guarantee a shorter wait is a benefit to both, it just needs to be done right.
Back to the topic, line jumpers suck, but the park has larger issues then to spend ridiculous amounts of money on security, which in this business, is a higher hourly wage that can greatly effect a park's budget. What you described above is an AMAZING management response, especially in a seasonal park, and I really hope that you don't see this as KI's fault/see any future for of Guest Recovery as a true apology, it doesn't cost the park any more than that Supervisors time that they truly want to spend to fix your day!
And just be happy KI dose not have a Express/Fastpass line