The Helix is designed for the user to set up a number of signal flow combinations. It allows for unique situations that would normally be extremely difficult to set up in real life. They can now be easily arranged within the unit. For further reading, make you also check out the Helix manual section on Serial vs. Parallel Routing and Moving Split & Merge Blocks.
View the Helix manual here
Having said that, you can also get some un desirable results if you're not caref