Yes, but converting a test to be data-driven adds some complexity (how do you debug just the failures?) and generating the inputs randomly makes it harder to kn

Yes, but converting a test to be data-driven adds some complexity (how do you debug just the failures?) and generating the inputs randomly makes it harder to know what properties to assert. Also, if you never look at the test data, it might give you false confidence about how thoroughly your code is being tested.