Crossbows = nono because someone wanted knights in shiny armor. There's no central church here with the power that the church had in the middle ages, so there's no authority that could issue same ban on heavy crossbows that was issued in the middle ages. Without such a ban, all those noble knights in their expensive (and shiny) plate armor will find themselves pin-cushioned by the companies of easily trained crossbowmen. In the middle ages, crossbows ended up banned because the nobles found themselves awfully vulnerable to such weapons and convinced the church to ban them.
If wearing heavy armor (especially like Markul), arrows have to strike just right to cause harm, if the angle is wrong, they ping off plate armor. Crossbows have slightly shorter range, but more force, so they perforate thicker armor. thus, wherever you mentioned that bit about markul not being affected by arrows Freeshooter, we didn't react, because it made some sense. You could probably have him react in the future, even if it is only in irritation at how harmless they are to him.
If wearing heavy armor (especially like Markul), arrows have to strike just right to cause harm, if the angle is wrong, they ping off plate armor. Crossbows have slightly shorter range, but more force, so they perforate thicker armor. thus, wherever you mentioned that bit about markul not being affected by arrows Freeshooter, we didn't react, because it made some sense. You could probably have him react in the future, even if it is only in irritation at how harmless they are to him.