I'm not sure which particular passage you're referring to, but keep in mind that page is basically a puff piece about the kings ceremonial roles. He does not actually control the government, act as the leader of the military, etc in the same way his title is "king" but any non-ceremonial rights belong to the elected prime minister. If he tried to name someone else as prime minister during the transition it wouldn't actually mean anything as it's a ceremony. Etc, unless you feel there is a specific passage which the role is not ceremonial, but it's difficult to explain how the whole thing is in response to a single link and no context.