I dont get when people generalize awpers to only be awpers... Literally anyone can awp/rifle/pistol as long as they practice it (on the pro level), it is not a challenge for them, even easier to secondary awp. Pros are much more fluid in their skill sets than you think.
Besides flamie was a main rifler who also just awps. Anyone could do it, and in a similar notion, anyone can rifle as well.