[SoftTalker]

That's why the programming tasks are simple. FizzBuzz, or "implement a deck of cards."

Sure there are different ways to do this but it's a small enough task that the quality of the solution is easy to judge.

I think the nail analogy works. If a blacksmith can't make a decent nail he shouldn't be hired. Same if a developer can't use one of a few very well-known standard library data structures to implement a deck of cards.