Kinda getting cringy there bud but if it works by all means go full force. If it helps calm the people of van and help them understand that under Souma's kingdoms things will be better than what they had with the previous ruler of van then sure we do what we can what we must.
lmfao after a single broadcast all the people just miraculously changed their minds. What in the fucking world does this author think political unrest and issues are?
It seems the author didn't bother since it'll be far too complicated to use anything aside from the linear communication model, which is understandable for a manga but proven unrealistic in real circumstances.