Matrix testing images and recommendations with or without base images

What is the best / recommended approach with recommendations and matrix testing when some images might not have base images which results into image has no base image exit and non-zero exit code?

Currently I've split cves and recommendations to own steps as follows:

- name: Image CVEs
  uses: docker/scout-action@f8c776824083494ab0d56b8105ba2ca85c86e4de # v1.18.2
  with:
    command: cves
    image: ${{ vars.IMAGE }}
    only-severities: ${{ inputs.severities || 'critical,high' }}
    only-fixed: true
    summary: true
    format: json
    exit-code: true
- name: Image recommendations
  uses: docker/scout-action@f8c776824083494ab0d56b8105ba2ca85c86e4de # v1.18.2
  continue-on-error: true
  with:
    command: recommendations
    image: ${{ vars.IMAGE }}
    only-severities: ${{ inputs.severities || 'critical,high' }}
    only-fixed: true
    summary: true
    format: json

Start by reviewing the provided GitHub Actions workflow and the docker/scout-action cves and recommendations commands, focusing on how images without base images affect exit codes. Define the desired behavior for matrix entries with and without base images, then verify it across both cases.