I am so thankful for the existence of this paper so I feel rather bad posting it, but I did find that all the different notations at play kind of overloaded my brain!
I'm very thankful for the the judgement forms in the boxes though - it does ease some of the burden, and I find it harder when papers omit them. I just found it a bit of a struggle to remember how to parse stuff when going back and forth between pages.
Makes me wonder if more uniform notations are helpful when systems approach a certain level of complexity - also some sort of interactivity might have helped too, perhaps?