Flicker Strike not Attacking from Multiple Angles like in Gem Tutorial

In the gem tutorial the video for Flicker Strike shows the player attacking a single target from multiple sides with multiple power charges. But when I used the skill my character just stays in one position and all their attacks from there.

Anyone know what's going on here? It's not really a function problem but the multiple angles of attack make the skill look way cooler so I'm wondering if it's a bug or if there's a mechanic I'm missing.