As president of the AFT, she has embraced tying teacher evaluations to student test scores. In Washington, DC, she helped negotiate a contract that made it easier to fire teachers. She supported a Colorado law that stripped tenure rights from teachers.
Backpedaling and giving in will not make the assault on public education go away. Organizing, education, and public outreach might.
Teacher unionism may be moribund. If it goes, we will have only ourselves to blame for not fighting back.