An interesting question. I think a couple arrows won't do much other than anger the dragon, so the question is whether to stop the hunters from somewhat literally poking a sleeping dragon in the eye? Should one allow foolish people to act foolishly and get what is coming to them, or should one intervene and try to create temporary peace? Maybe the dragon destroyed their home or killed a family member and they feel they have no choice. Maybe they're just doing it for sport or profit. Either way, the result will likely be the same. Whether or not to intervene is a difficult question to answer though.
This is an incredible piece. The concept is astoundingly deep, and the presentation is superb. You created a landscape so serene, beautiful and peaceful, yet with the threat of imminent violence lurking over it. You put details in all the right places and the shading and color choices you implemented are wonderful. This is true art.