I suspect Tim is criticizing a graphic which does not mean what he thinks it means. Somehow some people refer to the same thing ("testing a component") as unit

I suspect Tim is criticizing a graphic which does not mean what he thinks it means. Somehow some people refer to the same thing ("testing a component") as unit tests, while other consider it integration because it's made of multiple smaller functions/objects. The end result of this divergence is that the test pyramid has become a test hexagon because people slice it at arbitrary points, not because they concretely advocate testing different things.