the lousy tubing is used to preserve reliability. engine rocks back and forth quite a bit so less resistance, longer durability.
looks ugly though, your're right.
i think the HPS tubes are soft enough to accomodate the movement needed. it'd be funny if we started seeing HPS tube that were collapsing under the breather areas due to the engine movement.
in the stillen steup i think things are just banging around.
that is one area i am a little concerned about in my current setup... deformation.