I honestly think SH Arrows is a terrible approach unless it's being used as a mindgame. Hop arrow, land arrow, hop arrow, dash grab; for example. I don't like slow approaches as I'm always trying to be on the offensive. And as you said in your opening post, a simple change in direction alters the path of reflection.
But ALL of this conversation goes out the window when you utilize Arrow Chasing and Looping. If the don't see that arrow coming they get hit. If they can't see the arrow coming, but they know it is, they're going to be paranoid and defensive. This means they will either leave themselves open to your attack, or refuse to approach. In the end, being able to move while your opponent is at risk of being hit by an arrow they cannot see is a much better approach.