While correct, what the Junta is asking for makes perfect sense. China will never pressure anyone to do anything, but they would totally be willing to have both sides to cease fire and have peace talks and act as mediators. So asking China to ask the brotherhood isn't a bad idea.

However, considering the battlefield advantage that the brotherhood currently has, I question if they'll agree.

They got their hands on both sides for political influence. China is selling arms to the rebels, and to Myanmar junta. They make money, gain political leverage. Heck in 2021 election they were caught providing huge amounts of funding to a political party which was caught and subsequently banned under the former civilian government.