It still is a thing, always will be. People are vastly differently skilled. The problem isnt that there are different abilities but that our centralized meat mill pushes them into categories. It doesnt make you better to have more skill in one area, it just means people should consider listening to you.

there are companies that still use myers-briggs personality tests for "compatibility"

IQ is a very good indicator of cognitive abilities. It’s a poor indicator of kindness, morality, or honesty.