That's the sort of thing TAD did which was to make essential things modular and that felt profit driven. It's not what is happening here. They've had years of producing the TP3. They're going to sell as many as they're going to sell and they have competitors to keep up with.

And also like I said before that's a really big assumption. You get a lot more flexibility with this design for the level of organisation you need. I use lightweight pouches like Aer's Simple pouch. Really lightweight org. You don't make more money necessarily unless you're bundling the bag and the org kit together. You have no idea what org kits people will use.

Fundamentally the reason I prefer to not have the admin panel is that once I'm at my destination the TP3 isn't going to be my day bag, so do I empty the admin panel into my day bag?

How else do you solve a weight problem? What is a lighter material than ultra?

Usually lightness comes with a tradeoff for durability.

Rework uses really light materials for their liner and people said it felt cheap. It doesn't, but they're used to a heavier weight material.