El Shardo

I like Kaladin and enjoyed his bits in the books but he was incredibly frustrating, almost to a point where it would've felt satisfying if someone just sat him down and told him to stop acting like a little rust

Not at all, the 'dregs' are still part of society, killing them would be like stabbing yourself. And that's the mark of passionate society, we find ways to provide sustanance even for those who make decisions which would normally lead them to death and suffering.

Shallan being the one to kill her mother was predictable, but I'd always assumed it would have been some sort of accident rather than the result of her mother being a bit crazy. Very cool twist. But at the same time, if the mother wanted to genuinly harm Shallan then I find it hard to believe one of the brothers wouldn't have remembered, especially the older one.

I didn't interpret it that way at all, I think she was just alluding to the fact that marriage for her and for someone who was meant to be like Jasnah (Shallan) would limit her pursuits. When you think about it, Jasnah spends all her time travelling etc. which wouldn't allign with the commitments required to be in a relationship imo, not being married just gives her much more freedom to do what she likes. As someone earlier has said, she'll probably meet someone later on once she'd accomplished her goals