Ok ... hmmmm ... took this "Exclusively Available Through Premium Moodle Partners" as a literal. So suggest still contacting your MP and ask if there are partipcating Workplace 'premium' MP's you could contact for answers to your questions.
Am sure if I am totally in-correct about making that suggestion, we will be informed and you will get the answers if not who to contact.
Or maybe 'Dynamic Reports' really isn't a 'feature' in Moodle Workplace.
There is this: https://docs.moodle.org/39/en/Moodle_Workplace
and I see that page list a:
- Save time by generating reports easily in a drag and drop interface
with instant preview, filtering and aggregation of data from various
sources, including the Workplace Datastore. Schedule reports to be sent
automatically to different audiences.
A Moodle Workplace customer with 50+ colleges/unis customers ought to qualify for 'premium' support ... I would think!