There is no raid damage from Static Wound if you are not being meleed, regardless of whether you are standing in the pools or not. There's literally no reason not to. If you need to taunt while you still have stacks you will deal a little extra raid damage as Static Wound deals a third of the damage you take to the raid and pools increase your nature damage taken by 100%.
The confusion seems to arise because of the vague description of Conduction but it actually only affects specific abilities: Focused Lightning, Lightning Fissure and Ionization. I suppose Static Burst, the mechanic which applies Static Wound, doesn't help as that deals raid damage but again that raid damage isn't affected by the tanks standing in pools.
Not that it's a difficult fight in any way but your raid leader is a numpty if they never want you standing in pools, I regularly do 300k+ DPS with ease just by abusing AMS and IBF/DG to break throw stuns and sitting in pools 100% of the time. If the extra damage taken when taunting with stacks is really an issue you can just opt to stand in pools only when you are either not being meleed or you have no stacks of Static Wound.