The Council of Bishops is not the governing body of United Methodism.
An individual bishop can do whatever and the Council of Bishops can complain, and that’s about it.
I think the Council can defrock a bishop, though I don't know of any time that has occurred.
Full disclosure: I was a Methodist for the bulk of my first my first 35 years. At one point I applied to be a missionary in Japan and was rejected, not because of me but because the council of bishops decided they didn't want anyone going to Japan. I worked for Methodist churches in full-time music ministry for a while, and was halfway to becoming a diaconal minister in the denomination, when I switched first to college teaching, and then to the LCMS Lutheran church, 25 years ago. Spiritually it was the best move at the time, and I certainly would not go back with the UMC in its present condition, unless it was the only Christian option available.