I have a RRA 2-stage on my coyote hunting AR (also doubles as a prairie dog/varmint upper) and prefer it over single stage for these reasons. If I see a coyote coming toward my call from a ways out, once it gets in range you can ready yourself by pulling through the first stage until you feel the "wall" of the 2nd stage. Then as it gets into a position you like (quartering) or if you bark at it to stop, it's a clean break through the second stage and a crisp pull. I prefer it for slower, more methodical shooting.
In contrast, on my SBR and 6.8 I have single stage triggers because they are brush/stalking/fast follow-up shooting guns where I only want 1 movement of the trigger to fire. That's how I look at it...