Something I feel more after coming off Brandon Sanderson's Stormlight Archives and also a pretty infamous series in the Harry Potter fandom is that people almost cannot bear too much realism.
In a way, yes, we don't really get the gritty take through Rand's mental health but I'm not convinced we need it. Too much realism also annoys the reader, and messes with the pace of the story. I love WoT but LoC to KoD often feels very slow/bracing to me, and that's ignoring Dumai's Wells. Like, what purpose would it even serve to bog us deeper into Rand's mental health? I prefer the abstraction - it's hard not to look at Kaladin's recurring depression and to just be so tired of reading about it, even if it's realistic.