That requires significant trade-offs in durability, weight, and design.
Not to mention you don’t want the typical user (forget the HN audience) to replace the components themselves.
Most professional users are on corporate enterprise device plans and you don’t want employees or the IT department replacing components either. It’s far better and cheaper to get the employee back up and running with a new machine while the one in need of repair gets shipped off under enterprise warranty.
In many cases, a well-designed, durable product can be repairable. While the actual earbuds were not wonderfully well-reviewed, the Samsung Galaxy Buds were both tiny and legitimately repairable: https://www.ifixit.com/Teardown/Samsung+Galaxy+Buds+Teardown...
And they were a shit product. As you yourself admitted. It doesn't help if something is supposedly "repairable" (by the 0.5% of buyers who might be inclined to do such things) if the product is such crap that it gets thrown away after a few weeks.
Not to mention you don’t want the typical user (forget the HN audience) to replace the components themselves.
Most professional users are on corporate enterprise device plans and you don’t want employees or the IT department replacing components either. It’s far better and cheaper to get the employee back up and running with a new machine while the one in need of repair gets shipped off under enterprise warranty.