You talk about a complete course in the MPPU but that may not be necessary. A single introductory book (eg. Yinshun's Way to Buddhahood, Shengyan's Orthodox Chinese Buddhism, Gampopa's Jewel Ornament of Liberation) should suffice to provide enough basis for approaching more complicated teachings. But so far Buddhist communities rarely provide the necessary fundamentals, like in the form of Sunday schools. However, this is a discussion rather for the Western Buddhism part than sutra analysis.
What could be looked into here is catmoon's question about what to do with teachings one can't put anywhere. That's one thing. Another thing is the nature of reactions and what difference it makes if this text is from a sutra, from a Zen teacher, from a tantra or somewhere else. Many have read the Vimalakirti sutra and the relevant part hasn't been raised as far as I can recall as a controviersial teaching here or on other forums (where I've been). Calling it a teaching for beginner bodhisattvas might have added to the edge of it. But then, no problems with Zen teachings about directly getting at buddha-mind. How strange!
"While teachers of the middle way, mind only, transcendent wisdom, mantra, and other schools may have their own assertions, the fulfillment of those intentions is the same. There is not a single thing that is not contained within mind."
(Gampopa to Düsum Khyenpa, in "The First Karmapa", KTD Pub, p254)
“If you recognize the world of appearance and existence as the mind, realize the mind itself as empty, and have no grasping at the superiority of your realizations — this is the ultimate view."
(Chegom Dzongpa, in "The Book of Kadam", Wisdom Pub, p609)