Call me cynical, but I'm wondering if this drip, drip, drip approach is intended to dilute interest in the final report.
Those thirty findings raise more questions than they answer...
Its no different than an airplane crash investigation. If the NTSB finds that a failure of a critical component in a certain type of aircraft was a contributing factor, they wont wait until the investigation is complete before taking action. Theyll issue an interim finding and take the entire fleet of aircraft out of service until that component can be fixed on all of them.