Originally Posted by cosmicpanda
Ideally, splits would be banned to cars, and teams would make a gentlemen's agreement not to indicate splits to their drivers on the stages.
Splits allow the top drivers, when they're not first on the road, to control the pace of the rally too well. This discourages them from pushing and is boring because instead of setting up final-day fights (unless you're Loeb and in Finland), it benefits the driver in front and allows them to use their running position to maintain a lead over the rest of the field.