I have stated before that the 2-witness rule is irrelevant to the issue of JWs hiding incidents of pedophilia because even when there are two witnesses they still don't report incidents to the police as a matter of policy, worldwide. And even if they don't have 2 witnesses to the incident, that has no bearing on reporting a serious criminal allegation to the police since the 2 witness rule only applies to internal congregational discipline.
The real issue is the organization's selfish, egotistical drive to avoid negative allegations about members becoming public knowledge and bringing reproach on the organization. They're willing to risk the safety of children to preserve their self-assumed, white-washed image. That is the real issue - not the 2 witness rule.