Right, but are you going to fix it by yourself? No. Is the point correct that most people wont remember half of the arcane rituals we're expected to perform on command only in an interview or in very specific parts of the job? Yes. Can we relearn it? Sure. Will skills atrophy if unused? Definitely, balancing a binary tree is not like riding a bike.
Remembering how to balance a binary tree is a complete waste of brainpower. We have lots of papers, books, and reference material that can show us this.
The arcane rituals of jumping though leetcode hoops reminds me of pledging a fraternity.
