Some engineers are happy to use the process that works in the company, if that means going with TDD then they do that, but they have no strong feelings either way. That could be a good culture fit!
Some engineers have strong feelings and would prefer not to work in some ways. There are ways to do great engineering without TDD, they may be great engineers, but for a company that practices TDD they may be a poor fit.
To take it to a bit more of an extreme: I like code review. I believe it's a good thing. I want to have my code reviewed and to learn from that, and I want to be able to review my colleagues' code and know that they will take the feedback seriously. I would not work somewhere that did not do code review as I believe it correlates with good engineering practices. In this way, I would be a poor culture fit at somewhere that did not do code review, as I would be pushing to have code reviewed, or wanting to.