From the article you clearly didn't fucking read:

"Baylor admitted to moral and ethical failings in its handling of sexual and interpersonal violence on campus but argued those failings, however egregious, did not constitute violations of NCAA rules. Ultimately, and with tremendous reluctance, this panel agrees," the panel said in its decision. "To arrive at a different outcome would require the [committee] to ignore the rules the Association's membership has adopted — rules under which the [committee] is required to adjudicate. Such an outcome would be antithetical to the integrity of the infractions process."

The panel noted in its decision that the NCAA provides resources to support member schools in carrying out duties to address sexual violence on campus as required by the U.S. Department of Education's Office of Civil Rights and other law enforcement entities. While the former university president described Baylor's handling of sexual violence during this time as a "colossal operational failure," current NCAA rules — as proposed and voted on by member schools — do not call for the Committee on Infractions to adjudicate how schools respond to such issues.

Tl;dr: the NCAA acknowledges that multiple rapes happened but lack the authority to do anything about it and don't want to get sued into oblivion by Baylor for doing something they have no authority to do