Paper maps have a consistency and security no digital navigation device I ever owned or saw ever had.
I realize this is a kind of "get off my lawn" argument one could also make about digital vs analog newspapers, or books.
The key is: If my Kindle decides to do some weird updating and requires re-downloading all my books, well I guess I won't read on my subway ride home. If my map does that in northern Scandinavia, well now I am fucked.
Just print 5 maps and laminate them and you're pretty safe against weather and time. Not so much with a digital map.
Print something and it will show that print as long as it is not physically destructed. Not so much with a digital map ("oh, our services don't work in this country ha ha. Did you not read the t&c?")
Sun glare. Off the grid for three weeks. Weight. None of this is a problem with analog maps.
I guess you can solve most of these problems by throwing lots of money at god knows what military/navy device, thus I specified non-rich people. Or you know, just use a paper map.