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The linked document states: "There were reasonably available alternatives to the MPT that on their face appear to be less impairing and at least as effective in achieving the goal of improving student achievement in math. These include requiring a minimum number of hours of math instruction or a math course in B.Ed. programs, requiring an undergraduate math course as an admissions requirement for B.Ed. programs or waiting to see the effectsof the other parts of the Respondent’s four-year math strategy."

We're talking about the level of math that you need to calculate a percentage, or to average a handful of numbers.

I don't know, looking at the example questions the usefulness of some of them still seems limited.

Calculating fractional number division without a calculator for non STEM teachers is not a very relevant skill in my opinion.

There is no test to be a math teacher. This is one of the tests you have to pass to be a teacher. When you begin as a teacher it's not typically up to you which subjects you will teach.