Right, but the chances of a failed soldered SSD is the chance of
any important component on the motherboard
or the SSD, not just the SSD. Which doesn't mean you can forgo backups, but it does mean the chances of you needing them may be slimmer (and the cost of the repair smaller).
Then again "ship your entire Mac back to repair the webcam" was always a meme, so maybe Apple gonna Apple.