It sounds like they're suggesting most of the businesses they took money back from unintentionally claimed too much. They also said it was the third-parties who assisted with inaccurate claims that they're most interested in. Considering these would be accountants there might actually be some consequences for them that aren't just "bad application? That's a fine."
Considering the chaos and immediate need that these programs were conceived under, I think that the approach of giving money as quickly as possible then following up when the dust settled was the right approach. Like the premise of our justice system - better that some dishonest people have money they don't deserve temporarily than those in dire need go without.
Also, do we know they're not being charged interest?