We have contact!
Spoke with my new ambassador today. I think I hit the jackpot as she's a 10 year vet, 9 as an SPG ambassador.
We had a rather lengthy call that was quite informative. In addition to explaining the benefits, she helped me with a few issues on my spouse's account. She, by a wide margin, is the most knowledgeable Marriott representative to whom I've had the pleasure of speaking.