Most of the "bugs" caught here (including in TensorFlow and in my own project, Xarray) seems to actually be typos in the test suite. This is certainly a good catch (and yes, linters should check for this!), but seems a little oversold to me.
A typo in a list of tests to skip means tests are run that are not intended to be run. This can lead to unexpected failures, so in my opinion is not the same as the errors in test suites where tests run with other test data than intended but should still pass.