I would have to disagree with you on that, I think the death and succession mechanic is is probably what will give this game some great depth and immersiveness . Yeah you might be right in saying that no one asked for it but I for one welcome it wholeheartedly and am actually looking forward for when they implement it. I think TW got this part right and hope they don't scrap it.
If you scrap the death and succession mechanic, you would then have to scrap the children feature. Who honestly thinks that having kids, passing on your lands/title to them and playing as them is a bloat feature. If you get rid of this, all you would have is fighting and I don't know what else, this game is already lacking any meaningful strategy, right now it's basically just an arcade hack and slash. The last thing you need is to get rid of probably one of the coolest planned features.
Another thing, having kids and eventually playing as them makes the game so dynamic and re playable. Bottom line is the game needs depth.