What I find interesting is that the rule cited by the NCAA does not even appear to apply at all. "The bylaw reads: '... an institution and any individual subject to NCAA rules involved in a case shall treat that case under inquiry by the enforcement staff... as confidential.'" The bylaw appears to apply only the those being investigated and then only during the investigation phase. presumably to protect the investigation and avoid tainting sources of information. The article hints around this point, but does not make it.
There are a few ways to read the comment and the desire for quiet on the public relations front. To me, it is good that the NCAA has seen the backlash it so far has received. Hopefully, that backlash minimizes any inclination on the NCAA's part to expose itself to more of the same. At a minimum, the hope is that it will force the COI to be very careful in its review of the "evidence" to assure that anything on which it relies not only is sufficiently corroborated, but is sufficient to withstand the public scrutiny that likely will follow. That public relations environment did not raise the same concern in connection with PSU (definitely not) and USC (as I recall) and that could have impacted the findings and the severity of the sanctions.