Blaming China for cyber attacks without any public evidence creates highly-perverse dynamics: (1) breached entity, instead of paying in liability/blame for lack of security, can turn itself into victim of act of war; (2) increases support for requests by defense  agencies/contractors for huge funds and anti-privacy anti-privacy legislation; (3) any expert or media who challenges misattribution becomes enemy of the state; (4) no serious investigation in who really behind attacks, why they did it, and why they succeeded; (5) retaliation from China can just make all of this escalate.

Please, every expert go out there and challenge the actual evidence (and lack thereof) of China government responsibility in the attacks!