For those who might be interested:
(1) USGS maps are available in digital format
here for offline use
(2) Michelin maps are available
here for online use.
Among other criticisms of electronic systems, we read that paper maps are easier to share with others and/or give a better general view. Depends on what device you use to view maps. For the purpose of "destination discovery" (i.e. looking at a map in order to conceive an "interesting trip") you can cast on a TV or use a large monitor (4k or 5k are becoming more and more frequent).
Regarding the reliability argument, I'd be curious to see data. I've traveled quite a bit. Over the years, I've had a phone stolen once (with my wallet). No hardware failure. We typically travel with 3+ devices that could be used to navigate. I can't imagine a situation where failure would put us in danger. (The closest I've been to be in trouble was hiking in a densely forested area where the track progressively vanished, leading to a swamp. A paper map would have been totally useless. I was able to find an exit by navigating backwards, in zig-zags using a nav watch.)
May boil down to user preference. I actually prefer Kindle to print. Others prefer print over Kindle. In the case of navigation, however, I suspect that the learning curve also plays a role.