I make this up having the intention that this WS is for use in pt, and I think it will work even if just a summoner burn pt. If you use it on solo fight would be suicidal, but if summoner burn pt, unless the mob or NM use AoE move right after you use this WS, else I assume it is pretty safe. Given that you got a tank or your party member's avatar is tanking.
P.S. I am glad that you take an interest in my post. I think lots of people been skip it or ignore it.