With regard to long range, the giant blowpipes do indeed experience the penalty, along with just about every missile weapon in the game unless specially stated otherwise (the only one that comes to mind is the DE repeater handbow which states it does not suffer range penalties). This was a big change for 8th ed and means that even dwarven throwing axes are long range, and hence -1 to hit, in the 3-6" range bracket!! Also, remember that the steggie has a forward arc and can't shoot 360 so if a charge is coming from a flank, there is no S&S reaction.