How many do you own?
As far as evidence that there's negatives to a the modular design it is priced about the same as an M2 Air at the 8/256, 16/512, and 32/1TB tiers but is heavier, 40% thicker, 45% bigger, yet has a smaller screen, lower resolution, lower brightness, worse color gamut, half the battery life, lower performance benchmarks and no international locations you can walk into for support or repair.
The memory options are degraded to maintain backwards compatibility (the 13th gen Intel chips will support DDR5 5200, but is outfitted with DDR4 3200). And swapping modules, especially when not all modules are compatible with all motherboard types, means generating a ton of ewaste rather than specifying the machine that you need and keeping it for its useful lifetime.
The battery may be easier to replace, but it will need to be replaced twice as often.
And that's just what I can see on the website. I have no idea how reliable it is or for how long you'll be able to procure modular parts.
And the Macbook Air numbers in your table are all exaggerated compared to the official data sheet from Apple.