So, you are saying that a player should have no foreknowledge of *any* event during the game? Quite clearly, even the historical monarch had some sort of insight into his particular situation. There have been several, very good examples given earlier of how the possibility of a civil war could be gauged before it occured, so arguing that a complete lack of foresight is "historical" is completely absurd.
Now, perhaps if Paradox make a more detailed system of the monarchy and succession, I would be less worried. Whether my monarch is Louis XVI or King Generic III the boring, I at least want to know if I have an heir, whether he is an adult, possible opposition to his claim to the throne and the strength of other opposition etc. or the game becomes a random farce, like the random events in EU2 that basically involved "-3 stability, for absolutely no reason".
Unless there is a system for viewing your monarch that is as sophisticated as the one I described, I would rather have Wiki on Alt-Tab to check historical dates than have my country suddenly fall apart, with no prior warning, which is anything but historical.