That was one of the things that excited me most from the iFixit video; the (LGA?) pins are a separate part that can be replaced as well. Simplifies the motherboard because then there are just flat pads on there, which means they don't need to include the whole array of fancy pins for a second module if it doesn't ship with one.
yeah I didn't really understand that part tbh. if they can connect the array using flat pads, why not make that the connection for the memoryb instead of the fragile pins? why the extra component?