On the positive side, the prolongation of the Belarus exercise likely means that Russia is still in the game of brinkmanship. If you plan to invade now, why make this announcement?
The point of Russia’s demands from the beginning was to make them impossible to fulfill. “Your money or your life” is extortion. “A live unicorn or your life” is a manufactured justification for committing premeditated murder. This isn’t “brinksmanship;” it’s premeditated murder.