That "article", an editorial from a right-leaning source, doesn't support the claim that "the New York teachers union has made it clear they dont find how they are evaluated by test scores acceptable". In fact, it doesn't include any statements from any unions at all, direct or indirect.

If one actually reads it, it's just a recapitulation of TFA. "SED", the organization the editorial rails against, isn't a teacher's union, you know -- it's the State Education Department. ctrl+f for "union" in that piece, and beyond a reference to the Times Union article, the only involvement of a teachers' union is at the end, where the editorial's author claims that the union is the only beneficiary of these shenanigans, and implies that they had a dastardly hand in anointing the Assembly Speaker.

If there were other articles from other sources that you could trivially find, why didn't you use them? Why use this and misrepresent what it said?