So, I wouldn't call this a total failure as it resulted in drinkable coffee. Though it was weak and as such lacked much complexity or flavor. Per Mr Wood,
@woodpusher to his friends, I tried making the more concentrated brew from the Aeropress and then diluting the appropriate amount to end up with the correct coffee/water ratio in the end. I watch a video about brewing large amounts with the Aeropress and per that example, went for it. But this was at the far end of things and I used 60g of coffee and 900ml of water. There just really isn't enough space in the Aeropress to correctly brew 60g of coffee. Maybe if I waited longer than the standard 2 min?
It is also a little less than convenient if you want to be precise, that is doing things by weight. Given the lack of space after 60g of grounds were added, I only bloomed with 100g of water, and then could only add in another 100g for the brew. Had to do a deep stirring to get all the grounds suspended for that. After 2min this was then pressed, transferred into the Chemex, scale tared again and then 700g of water added.
I could see this technique coming into play if you wanted a 16oz cuppa instead of 10-11oz. And you were using volumetric measurements. In this fashion, one could just brew with whatever fits well, then dump the rest in your cup when you're done. In terms of larger volume, I think pour-over is better logistically.
Here's what 60g of grounds looks like in the Aeropress.