The articles you cite don't mention teachers' unions at all, and they don't point to "the worse job they’re doing teaching" as the reason for renorming standard

The articles you cite don't mention teachers' unions at all, and they don't point to "the worse job they’re doing teaching" as the reason for renorming standardized tests. I agree with you on the need for reform (though I have a hunch we would disagree on the specifics), but I don't think your argument adds up.