Uncle Bob always has some clever things to say on TDD too:
http://blog.cleancoder.com/uncle-bob/2017/03/03/TDD-Harms-Ar...
and: http://blog.cleancoder.com/uncle-bob/2016/11/10/TDD-Doesnt-w...
and: http://blog.cleancoder.com/uncle-bob/2016/11/10/TDD-Doesnt-w...
He's just too dogmatic to be credible to anyone working in the industry (and make no mistake, Uncle Bob knows absolutely nothing of the software industry in the 21st century).
His writings are only here to promote himself, his books and his consultancy. That's it.
[addition]: I also find it weird how the Clean Coder seemed to encourage burnout by prescribing that you use your off-hours to hone your craft. While I agree that software engineering should be treated more like a craft (in particular, I'm thinking of the apprenticeship and craftsman ship culture that is prevalent in Germany / possibly other former Hansa areas), I don't think that it's reasonable to assume that people should sacrifice their personal time for it. I understand that sometimes this might be necessary (the proverbial night class to get up to speed with some new domain of knowledge), but his implying that surgeons constantly practice surgery during their off-hours (and really, short of illegally exhuming bodies, how would they do this?) seemed a bit of a naive and unrealistic ideal.