If you can choose which direction (above or from side) you want to utilize to output items as modpack developers, you can make some additional challenges to players to make throughput optimal with his logistic abilities (also to plan it with fluid in mind if #2 will be accepted).
For regular players this feature doesn't do anything itself - they need to have a reason to enable it in config (make logistic a little more complex, make it compatible with other mods' things etc)