If I were to guess, the types of questions you received were different, but the general process of how the tests were made remained the same. And that's the bureaucratic, lowest-common denominator mentality that pervades broadly given tests. And I agree with you that "[t]eachers need to be able to teach to their own students." I think that was a big part of the OP's point since that's something she does.
It's all part of the conundrum: Everyone wants good teachers and accountability in education, but there doesn't appear to be a high-level way of making such assessments that can pass the necessary political muster.