what union opposed the change? The Alliance group mentioned is not a Union of teachers. https://www.aqeny.org/
Unions aren't mentioned at all in the article. Your claim is also a bald faced lie. More so than the OP. This article supports OP's claim https://nypost.com/2023/03/16/nys-education-leaders-again-pr..., I can trivially find other articles from other sources where the New York teachers union has made it clear they dont find how they are evaluated by test scores acceptable. That may even be a reasonable position to have. There is more data out their to support OPs claim than yours that they are against it.
Unions aren't mentioned at all in the article. Your claim is also a bald faced lie. More so than the OP. This article supports OP's claim https://nypost.com/2023/03/16/nys-education-leaders-again-pr..., I can trivially find other articles from other sources where the New York teachers union has made it clear they dont find how they are evaluated by test scores acceptable. That may even be a reasonable position to have. There is more data out their to support OPs claim than yours that they are against it.