I play all my Paradox games on the TV with a Steam Controller, so I use the analogue stick to move the map around and don't need screen edge scrolling. I find I often move it a little by accident when I move the cursor to one of the edge menus from far away (I'm still not quite as precise with big movements on SC as I am with a mouse). Ideally you'd build in proper SC suppose such as using a track pad to drag the map around (see X-COM 2 for example) but I'd settle for the option of disable edge scrolling.