That's where the cover system pops in. I hardly ever use it cause it simply ****s up my position when I try to strafe or move around window frames.Yeah, wanting this excessive sway for holding your rifle up for 10 seconds is way out of line for me. 30 seconds? That I could see. I do not want to have to literally pop back into cover every 9 seconds just to keep my aim steady. Sometimes the area you're watching can't be ignored for that long.
Introducing the feature of gun sway after holding it up would really make the cover system useful cause it kinda simulates you leaning your rifle on a stabile platform. I'm not saying that the cover system is useless in this game, it has its moments. But there is no real need of using it when you think about it.
Why would I use the cover system and expose myself to enemy fire by showing my rifle barrel when I can just stand 1 meter inside of the room and aim through the window while standing and having perfect accuracy with no sway. It's just not realistic.