You can compare it to COVID-19 reactions among the people you know. Almost everyone now keeps distance in public, because everyone knows they should and are expected to. But how many people don't connect this with the fact that they should absolutely not meet up with their friends now? Or that they should absolutely not visit their families this Easter? Or that it would be wise to wash groceries and deliveries?
We could say this parroting group is doing cargo-cult OPSEC. They can know they shouldn't brag about their crimes in person or on social media, and yet at the same time they could easily trip using communication tools they don't understand - unless the industry goes out of its way to make such tripping impossible. I think this is the group the law enforcement is talking about. Not the idiot criminals, not the smart criminals - just regular ones, who don't understand the world they live in well, and occasionally make mistakes.