I am trying to figure out the logic behind this decision....Why would you not gain edge from making a sound tactical move, but by making a less sound tactical move, you can get edge.
The previous example, which I agree sounds valid with RAW, makes no sense from a thematic standpoint. I stand up from cover, exposing myself completely, or step away from cover, exposing myself completely. I then shoot. I then take cover again....why would that allow edge over me maintaining cover, lining up a shot and potentially using cover (depending on type of cover, say a turned over metal table) to help line up the shot....would not have any consideration to get any edge....