> "candidate with an MS degree in CS and x years at SomeCo, can't do FizzBuzz" isn't a myth

I've interviewed many candidates. It happens to find people that cannot code at all.

Yet, one does not propose trivial coding challenges like FizzBuzz. Very little is gained from finding out that a senior developer can do FizzBuzz and then fails at any more complex coding. You simply go for more complex questions straight away.