There is requirement that content author want to review the "Content Fragment" with Business Owner Group before it mapped to actual page. This will be done by using workflow step.
I understand from the blogs ( Display AEM Content Fragment in a Workflow Step ) and tutorial links Working with Content Fragments that Content Fragment can't be viewed from workflow step.
Is this constrains or limitation in AEM that in workflow step Fragment content can't be viewed.
I believe page having content fragment still let the user to modify page as well as content fragment . So the adobe recommendation on content fragment can be viewed only from page works fine.