$Mitsubishi Motors (7211.JP)$ Nissan of Mitsubishi Motors is...

Nissan of Mitsubishi Motors is the largest shareholder, and joining the Nissan Honda Union should have been factored in from a common sense perspective, it is a mystery that this news was viewed as material

If you turn it the other way around, does that mean that the market was also considering developments where Mitsubishi Motors would be cut off by the Nissan Honda Coalition?