Is this statement regarding access management valid?

The statement is correct. Identity Security Cloud allows administrators to configure a requestable role so that reviewers must provide justification when denying the requested access.

When configuring a role for access requests, administrators can enable the role for requests, define its approval process, and configure Require Comments behavior. SailPoint specifically provides an option named When a reviewer denies the request . Enabling this setting requires the reviewer to enter a comment or reason when rejecting the role request.

This requirement strengthens governance and auditability. A denial without explanation provides limited evidence about why the access was considered inappropriate. Requiring a comment records the business or security reasoning behind the decision, which can later assist administrators, access owners, auditors, and compliance personnel in understanding the approval history.

Comment requirements can also be configured at other stages, including when the requester submits the access request. Similar denial-comment controls exist for directly requestable entitlements.

Therefore, requiring a reviewer to document the reason for rejection is a supported role-request configuration.

Study Guide Reference: Access Management — Requestable Roles, Approval Processes, Require Comments and Access Request Governance.