Escha Wyrms and Spike Flail

I don't know if it's a sign of the times and newer players aren't aware of the dangers of attacking a Wyrm from behind but poor positioning on player part is causing mass wipes at these dragons, which is compounded by the fact you can't control or be held accountable for the multiple players at these dragons.

So a suggestion if I may, could you alter spike flail on these Wyrms to a conal attack, that way people attacking from behind will hopefully learn not to without MPKing everyone else at the Wyrm fights.