The Braves likely see someone who they reasonably think can be a solid lefty out of the bullpen, and if you get that from a 5th rounder -- you call it a win every day of the week.
I just don't see the need to go overslot / 5th round for that guy. But I'm a guy giving an opinion on a guy who I've never knew existed before I saw his name in the draft; suffice to say take my thoughts with a grain of salt.
3rd round*