Wait till your Macbook dies and you try to pull some data out of the soldered on SSD. I find dongles annoying, lack of magsafe irritating but the soldered on SSD is what really puts me off.
Those upgradable connector ports have a cost associated with them.
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....
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?