My point is that such an issue should not even enter your mind. Computer storage is a normal wear item, much like the tires (tyres) of your choice of transportation. Wear is inevitable, replacement is expected, and FIXING IT should be a designed in feature.
As for your report, try this counterpoint. https://datarecovery.com/rd/ssd-lifespans-how-long-can-you-trust-your-solid-state-drive/
Many, many years, ago, a guy named Tucker, came out with a car with and engine with monobloc construction. The monobloc setup was thought to be a good way to avoid head gasket failures but brought along a whole new world of technical issues when it came to working on the engine. The same holds with the non-serviceable SSD. It does give a short term gain of *show*, while providing large negatives in the *service*.
It matters not, if the SSD lasts 5 years or 10 years. If your only practical option is to replace the entire computer or at a minimum, a much larger (expensive) circuitboard, it is no option, at all. As well as placing a potentially unaffordable financial burden on the User, it means that an entire computer of hazardous waste must now be inefficiently recycled (and many parts of the computer are NOT currently recyclable) in some polluted 3rd world country, rather a single, small, mostly recyclable SSD.
The non-servicable SSD is good for Apple's short-term bottom line, but bad for both the User and the Environment and only passes on more problems for the "next generation" to live with.
https://www.epa.gov/smm-electronics/basic-information-about-electronics-stewardship
Good Stewardship means not creating a problem when you don't really have to....Apple doesn't have to be creating this problem, it's just cheaper and more profitable to create it.