I didn't get the impression that this was a self-taught or newbie coder. I think their audience is not assumed to be a CS grad though.
I found it a good and well-reasoned explanation of _why_ he enjoys types in a large codebase. He does take time to explain different type concepts, but I assumed that was because he doesn't assume his audience is familiar with all of them. Considering that the opinion "types are good and helpful in a codebase" is not universally held, even by very experienced/productive coders (see https://world.hey.com/dhh/turbo-8-is-dropping-typescript-701... or basically any ruby codebase), I think articles like this have a definite place.
I found it a good and well-reasoned explanation of _why_ he enjoys types in a large codebase. He does take time to explain different type concepts, but I assumed that was because he doesn't assume his audience is familiar with all of them. Considering that the opinion "types are good and helpful in a codebase" is not universally held, even by very experienced/productive coders (see https://world.hey.com/dhh/turbo-8-is-dropping-typescript-701... or basically any ruby codebase), I think articles like this have a definite place.