I think the main thing regulation should do is help manage how much risk the students are exposed to. They can filter out low effort scams while allowing experimental programs that can rationalize their approach a wide latitude to innovate and even fail. Based on my cursory assessment of Lambda's model, they would likely survive this type of scrutiny.
I don’t think (for us) this process have improved the school at all.
The juice may still be worth the squeeze for larger/funded ventures. Your efforts to translate what you do to what regulators want to see is probably worth it. However, smaller outfits might be inclined to avoid that work by following the regulatory ruts and deliver exactly what they are looking for to avoid these costs/complexities/risks.