The East had the coast, the sea. The most of Seazle empire's revenue came from the trade through the sea. So, giving it independence, means retreating their Royal troops from the coast. This would give an open into the empire, making it easy for enemies to come into the Empire, through the sea route and attack on them easily.
Which means, if they ever made the East part an individual body, and go according to the Protestants conditions, this only means the seazle empire is digging it's own grave and the empire ruler himself is creating a weak point to wage attacks and wars towards his own empire. Will there be such a foolish emperor to create a portal to let others ruin and end his reign?
