I like the stun, think it fills a good niche for the class given they ruined arctic. If anything, they should remove the snare and perhaps slightly increase the cooldown of the proc itself. They also should just make it a standard "fear" - I get the attempt at some thematic cohesion with the charm aspect, but in practice it is extremely buggy and often puts player inside walls, objects, through floors, and is just flat out unbreakable far more often than other CCs.