Not to mention that "just replace the motherboard" can often mean costing half, if not more, the original price of the machine. What happens if my SSD wears out? I just have to replace the entire logic board for one wear component?
Say it's not the SSD and it's something else like a voltage regulator. Now this motherboard is complete scrap. There's no harvesting of the RAM or SSD, so the part is probably $300 more expensive than it needs to be. And all those useful parts that are already scarce in a chip shortage will just be ground down and "recycled". These laptops suck.
Additionally, some industries like K12 or non-profits a lot of times have to try to squeeze as much life out of their systems as possible. These organizations would benefit insanely from better repairability and cheaper access to parts.
Of course motherboards are a bit harder to repair and usually means replacing the whole board, but it doesn't have to if we had a skilled workforce that could easily refurbish boards. Apple has taken great measures to make sure this never happens.
There's also the argument to be made for historic preservation. The retro computer community has been doing nothing but growing and I can already see in 20+ years time that these machines will be absolutely unusable without some sort of software hack. Even then, your onboard storage is shot and you have to boot externally.
You can make repairable, cost effective, well built, and top of the line machines. Apple just doesn't do it.
If it is a hassle then you're doing it wrong and you'll be in all sorts of trouble if you lose your laptop / it gets stolen.
Then again "ship your entire Mac back to repair the webcam" was always a meme, so maybe Apple gonna Apple.
