Yeah sure. But sometimes you are traveling, without access to your backup. Or something did not yet make it to the backup. Or whatever, 100 other situations. Making SSD soldered on as opposed to putting a $3 connector just adds to fragility. On $3k laptop. No thanks.
So a connector is /less/ fragile than a soldered connection?
I don’t think so.
If you’re really depending that much on the ad-hoc access to a backup, drop an additional external SSD in your bag and add it to timemachine. That’s even more secure.
I highly doubt that you are currently packing an external adapter to transplant your internal SSD to in case your notebook fails....
Let me explain: motherboard has 1000 components. One of them fails and it is likely a brick. SSD contains several chips. Most probably what will fail will not be an SSD but some capacitor somewhere on CPU power line. With a separate SSD, you buy connector/another laptop, pull it out of a bricked machine and you are good to go. With a soldered on SSD you a F^%$ed. All for a $3 connector.
I'm not paying $3k to be inconvenienced by such retarded design and carry yet another ssd along with my bag of dongles, because apple decided to get cheap on a $3 connector. Kapish?