Interesting, I genuinely think the opposite.
I know other fans aren't our main audience with this banner, but I'd wager less than 10% of football fans in this country know who "Top" is, especially in the play on words context here.
Yet majority will know who King Power are. With "King Power Out", the message is incredibly clear, shows how disillusioned the fans (that are behind the banner) are with the Club/ownership and will provoke discussion.