My personal answer rather is: One is working on a kind of software with additional safety or security requirements, where CI would be a really bad idea.
This does not contradict to the idea that methods that are rather necessary for CI, such as really high test coverage (this is typically even a requirement for such a kind of software), automatic building (can improve productivity a lot) often also make sense in such an environment.
This does not contradict to the idea that methods that are rather necessary for CI, such as really high test coverage (this is typically even a requirement for such a kind of software), automatic building (can improve productivity a lot) often also make sense in such an environment.