The most concerning issue for the information security steering committee should be that no owners were identified for some risks in the risk register. This means that there is no clear accountability and responsibility for managing and mitigating those risks, and that the risks may not be properly addressed or monitored. The risk owners are the persons who have the authority and ability to implement the risk treatment options and to accept the residual risk. The risk owners should be identified and assigned for each risk in the risk register, and they should report the status and progress of the risk management activities to the information security steering committee.
Reference = CISM Review Manual, 16th Edition eBook1, Chapter 2: Information Risk Management, Section: Risk Management, Subsection: Risk Register, Page 104.