> There was no serious expert that did not warn about the severe negative repercussions.

This is surprisingly often the case, not just for criminal law (or "security law") changes, but even in general lawmaking. And way more often than not those experts are spot on. Be it obvious loop holes in regulations, tax code issues, eroding civil rights, obvious unconstitionality of many surveillance (and many other) laws, obvious abuse potential and so on. It's a very long list.