From Section 2.2 "The Bad"

>> B1: Too arbitrary. The shell’s virtue of limitless composition (G1) is also its vice: the shell can compose arbitrary commands written in arbitrary languages.

This is what I fundamentally love about the shell, and you can try to pry it from my cold, dead fingers

>> B3: Too obscure. The semantics of the shell and common commands are documented in 300pp of standardese [7].

With respect to Bash, I couldn't agree more about the 'standardese' gripe. Man pages would be so, so much more useful if they prioritized showing examples of common/useful ways to use the command. I would love a 'man --examples $COMMAND' feature. Does something like that exist?