I didn’t mention it because it is hard to make any prediction about this for the Librem 14, since no one has opened it up and looked at the construction. I think that we can be reasonably confident that Purism has solved the previous hardware problems (hinge breaks because anchored to plastic, audio jack breaking and no replacement IO card, strange key mapping on the keyboard, etc.) in the Librem 14, which uses new component suppliers and a new assembler. Purism says that it chose a new assembler because of quality control issues with the previous assembler.
The one issue where I think that System76 has a real advantage is its ability to buy replacement parts from Clevo. From what I understand, Clevo replacement parts aren’t cheap, but the company does provide them. Purism’s ability to provide replacement parts will probably improve with greater volume.