Sure, but that's when they get told "you need to replace the logic board, that'll be $500 since it's out of warranty". That's not a theoretical problem either, people were literally told to do this back when the Big Sur brick happened to my model (2014 MBP). Eventually users figured out on their own that you could just replace the I/O board (not the mainboard / "logic board"). Apparently (going by that forum thread) disconnecting and then reconnecting the I/O board fixes it as well for some people (I don't remember whether I tested this), but this isn't something that Apple happily figured out and did for everyone who walked into one of their stores. We had to fix it ourselves.
Sure, doesn't make this any less inconvenient though. I would much prefer to finish whatever I want to finish today (even if I spend a few hours trying to fix an issue) than wait whatever amount of days waiting until my hardware is fixed.
You're right that it's not ideal, but it certainly makes it a lot _less_ inconvenient than being completely stuck forever (as most non-highly-technical people would be if they had to follow instructions on forums to fix Linux).
Most users will just take their machine in to the Apple Store when this kind of thing happens, rather than try to fix it themselves.