I have never seen an auto maker warranty anything for 25 years / unlimited miles. Regular braking systems are not warranted this long making this insanity.

Any of the bad PR is generated by those with little real data , emotional responses and the inability to deal with loss of power assist.

Perception is everything, I remember in the 70's / 80's when GM lost a law suit because Chevy engines went into Buicks ( there was lots of engine swapping so there were probably many other suits. )

https://www.nytimes.com/1977/03/15/archives/article-4-no-title-engine-swaps-innocent-to-gm-but-sinful-to.html

https://www.nytimes.com/1981/06/28/us/jury-orders-gm-to-pay-10000-in-switch-of-engines.html

People are expecting aircraft levels of reliability with minimal to no maintenance. The SBC's cycle count attempts to accomplish this but drivers resist replacing a part when it times out. Or even worse, lumping a brake light switch failure into the cycle count lock out.

With cars being much more reliable than in the 70's and 80's , fewer people experience the loss of power steering / power braking and are unable to cope with this in more modern cars.

I'm involved in a repair of a full sized pickup truck where most of the electrical system shuts off due to an electrical fault. The driver ( 30 something ) claims the steering " locks up and can't be turned " when the engine stalls. This truck has electric power steering and ,while the steering is stiff, it can still be steered just not with one finger.

I'd be willing to speculate that those claiming " total loss of brakes " are normally driving with tips of toes and push the peddle the normal distance but no farther during a SBC failure. RE: They are selecting braking force by peddle distance not foot pressure.