Welp. I knew it was only a matter of time and if be faced with this. It took three years but mine finally cratered under the weight of my wife's giant water mug. Luckily I noticed pretty quickly and remembered this thread with all the useful help. Funny thing is that my wife has been using this mug and others like it in her RDX for over 5 yrs, with double the mileage and nothing has ever fallen apart.
I took as much of the advice in this thread as I could find and tried to marry it all up. And I will admit, I talked trash early on in this thread about the rubber band, and while I admit the it's actually a pretty sturdy band, is still a crappy design.
So I managed to get everything apart (without breaking something else), and fixed in about 3hrs, including dry time for the plastic weld. Not a hard job but pretty annoying when you see how overly complex and yet how brittle and terrible this design is. Given that Ford won't warranty this crap, it's almost like it was made to fail for a super easy and expensive replacement many owners of these would elect to do vs. repair.
To do the repair, I ran to my local ACE and grabbed a bunch of 6/32nds screws, nylon locknuts, and some washers. I ended up not using the washers as there isn't really enough room on the plastic flanges for them. I found that using a super small drill bit on the plastic weld first, then following up with a larger diameter drill bit for the screws was best. The final screws I ended up using were 6/32 x 1/2”. I applied a nice bead of plastic weld right before screwing it all back together. And that's where my first mistake was made, I forgot to put the clear led strip back in first. Thank goodness the plastic weld hadnt set yet and I was able to pull it apart to get that back in. Also. To make reassembly easier, I used a marker and scribed front on each major piece.
2hrs of dry time and it was ready to go back in. Another annoying part is the wire harnesses. A bunch of different ones that all release differently. Why not either make them a standard mechanism or create a single harness regardless of trim level, to make everything easier. Anyway, thank you to everyone for posting your experiences.