After the 3rd book, I refused to invest much of my time on reading the 4th so I just youtubed a summary of it and even then I felt I was robbed of my time. I read that Sanderson's "prose" aren't the best but even the plot is lacking. And yeah, too many Jesnah chapters.
What really put me off is the way Kalidan's PTSD was handeld especially when you compare it to Dalinar's so it's the author's choice to go that route. I kept waiting a redemption arc for Kaladin and wouldn't you know it, it came by the hands of Dalinar striping him of his military duty so I thought "maybe this is the wake-up call that Kaladin needs" he could've chosen to lash-out at Dalinar, refuse his commands and keep leading the squad that he assembled, or maybe just walk away and start anew but nah, he choose group-therapy when people are dying all-round him. That was the nail on the coffin for me not just for the MC but also the book series.
I don't mind sub-par writing, world building, characters, or plot because I have read some trashy fantasy novels, but when you write characters like Wit and Dalinar and then serve me that, now you are just pushing how far your fanbase can tolerate your nonsense.