For some people reading a book (particularly fiction) is fun. An opposite of work. There's no need to rope some shoddy "psychological" theory into it, when at the end of the day it boils down to nothing but individual preferences and what a person actually finds enjoyable.I also think that FA is much better at this field. Huge amount of text just make it hard to enjoy playing, it feels like reading a book. Psychologicaly this is important to have small bits of texts on the screen, otherwise it feels like work instead of fun.
The alternative and equally "psychological" take would be that having to click through 10 one-sentence screens instead of having it on single screen you can either read, skim or skip with a single click... is fucking annoying and not "fun".
(but all the extra clicking certainly helps to make the content feel longer, so that's valuable if you take months to produce one scene, i guess)