It's a lot different attacking as a full back as opposed to a wing back. As a full back you can often overlap into space, as a wing back you often end up faced directly against another full back or wing back. As Lichtsteiner isn't the most skilled technical player he can't really dribble a player with skill or beat him with a deep cross, so he's better running into space.
That goal though, that comes off 1 every 10 times for him, but that's how the game went. Finally a clinical performance.