These are good challenges to think about. Almost all of them are user-focused, and there’s a refreshing focus away from reaching for a library:
It’s tempting to read about these problems with a particular view library or a data fetching library in mind as a solution. But I encourage you to pretend that these libraries don’t exist, and read again from that perspective. How would you approach solving these issues?
Developer happiness is only a benefit if it first does no harm to others. Even better if it genuinely amplifies benefits to those further up chain of priorities.
It really, really bothers me that wireframes have evolved from being a prioritisation tool into a layout tool (disempowering UI designers in the process), so I’m happy to see an alternative like this—somewhat like Dan Brown’s Page Description Diagrams.