Incorrect Check and/or insufficient info

I would like to give some feedback about ...

From: https://py.checkio.org/mission/unix-match-part-2/solve/

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Feedback: I have failed this 'mission' on multiple tests that weren't described in the setup, such as: - '[]' in pattern means automatic False (which makes sense, but isn't mentioned) - '[[c]' matches 'c', (which isn't mentioned and doesn't make any sense) - '[!]' matches '[!]', (setup doesn't mention brackets appearing in filename

Perhaps all of these cases can make sense, but they haven't been sufficiently set up in the premise, and it's pretty annoying to only get clarification about the 'mission' by failing.