A bear backed into a corner is a very dangerous thing.
He is mad enough to go up a notch.
None of the military top brass are keen on being toast.
They have openly fallen out with Putin recently, which is why you are seeing what you are seeing.
And, given that the nuclear arsenal has been poorly maintained, like the rest of the army's equipment, there's no guaranteeing that it will leave the bunker even if the buttons are pressed.
Here's hoping eh.