I agree it seems a little jinky.
On the other hand, I see it as non-structural at that corner, and more of just a means of stopping any wiggle... The forward point does massively increase stability of the shelf with that huge forward bolt. I ki da think they designed a brace…then realized they may as well offer one with molle as an afterthought.
I guess a similar argument re weakness could be made about every OEM panel in back…except its even worse. Nearly everythi g back there is “secured” with little plastic plugs & clips…with just an occasional bolt or scree.
I do like the idea of a rivnut designed for plastics…but no matter what, the panel it would secure to will never be more secure than the plastic clips the panels attach with.
I suspect if there was a captive nut or bolt thread available, they would have used it…

On the other hand… as an aside…I don’t personally find the molle window panels to be all that useful a spot. They are too far away from reach points…and if you put much on them, it subtracts from the cargo bay’s capacity anyway. At thjs point I have nothing on them, and am seeing them as basically meaning the shelf can handle more load.
Goofy aside… My “bad-ass” use for the shelf is almost always just to stuff my 3 huge, king-size bed pillows up there…as I gots ta have me pillows when I travel…even in a tent.

—Guess I’d better find pillows with “tactical” in their brand name so I’m still cool.