It's not that the map is hard to read; it's just when there's no one in place, if I presume Tommi has sneak attack, it puts pressure on other players to move a particular way. I often make it conditional, and keep the roll separate, but even then it seems clear.
I thoguht that using Druidcraft would (a) avoid that, and (b) possible be a fun way to prevent the bridge burning. At best, Tommi could take out one goblin. Finding a way to douse the flames seemed more tactical. Tommi's not used his Druidcraft yet, and I hoped this would be a good tactical choice. I know I could have used my sling.