The parts are niche, they don’t work anywhere else. Nobody will touch making niche parts for repairing one with a niche marketshare. You don't expect anyone to take up custom parts to a WilyFox phone even though its a much larger marketshare device do you? So why do you think they will for this laptop nobody has? Yes, it’s a general computer, nothing unique in computing to choose it over the other.

Dell and HP have plenty of aftermarket parts and don’t limit my OS either.

They start at $999 and the base is 8GB, 256GB SSD, with an i5 and you need to wait with a deposit and it only has 1 year of warranty with no strong aftermarket products. None of these are incentivizing for performance, for repairable, or for cost.