But if there is such a list of requirements they should also add critical thinking to it.

Problem is, if there's a test for Critical Thinking, people will most probably just convert it into a SAT and then it will not longer do its job.
Also that Critical Thinking tends to not work the same for all people in all situations. In some cases, people might just not care about the outcome of something, enough to put in the mental effort for the same thing that others would.