I don't understand why he has to equal TDD with the mockist approach to TDD without clarifying he is talking about the mockist approach and not TDD in general.

I don't understand why he has to equal TDD with the mockist approach to TDD without clarifying he is talking about the mockist approach and not TDD in general. Pivotal Labs for example is obviously a huge proponent of TDD, but has been historically been opposed to hesitant towards true, isolated, heavily stubbed and mocked unit tests. That makes me wonder if he just doesn't have a differentiated enough view of TDD or if he omitted that on purpose to get more attention. I am also not sure which answer is would be more disappointing.