It's not pleasant to read this.

    The claim here is profound: comprehension of the codebase at the function level is no longer necessary

It's not profound. It's not profound when I read the exact same awed blog post about how "agentic" is the future and you don't even need to know code anymore.

It wasn't profound the first time, and it's even dumber that people keep repeating it - maybe they take all the time they saved not writing, and use it to not read.