That’s never been the case. Drive down moderately steep grades and shift to a low gear to spare you breaks, for example. It’s the same argument. We don’t drive black boxes. Anecdote, a relative drove trucks in the Korean War and after, his vehicles lasted much longer per miles driven without maintenance due to how he drove.
Would you expect manufacturers to publish maintenance schedules assuming everyone drives like your relative, or based on maybe the 25th percentile of how people actually drive?
IMO product designers should not assume that the typical customer is a hyper-optimizer.
