The background section in QMIG contains a discussion on QUICK that implies that evolution of standards and implementations will lead to adoption of QUICK.

Refer to https://hl7.org/fhir/us/cqfmeasures/#quality-improvement-core-implementation-guide-qi-core

Wording: Note that QI-Core is intended to be a FHIR-based rendering of a quality-focused logical model called QUICK (Quality Information and Clinical Knowledge). However, the QUICK model is still in development, so the QI-Core profiles are currently built directly as a FHIR Implementation Guide. To support the goals of the QUICK logical model, the QI-Core implementation guide includes an author-focused view of QUICK, the QUICK logical view. See the Relationship Between QUICK, the QI-Core Profiles, and FHIR discussion in the QI-Core implementation guide for more information.

Based on current conversations around QUICK, this verbiage should be updated.