I found a schema validation mechanism that actually displays angular expressions for my site:
...
datePublished {{lvl_project['year']}}
name "{{lvl_project['title']}}"
keywords {{lvl_project['tools'].join(',')}}
...
In addition, it does NOT display all ng-repeatnon-generated elements.
This seems to me to be a strong sign that the google bot did not see the angular-generated elements and their values, but there may be more problems that I do not know.
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