Agreed the Army once wore blue, but the Army is similar to a woman who can’t make up her mind about what she wants to wear.
We never stopped wearing blue.
We just kept it in the dress uniform.
But, you’re right that we have a problem with career officers (Shineski, et al) who keep changing things to keep their careers alive. “Publish or perish”, as they say.
Most soldiers want to return and STAY with those uniforms that defined the Army in the WWII era.