It gets your mouse closer to the actual keyboard.
When you let go of the keyboard to get your mouse with a full, you have to go over to the numpad, even though you don’t use it very often. It puts your right hand in a position that’s not very natural, at least to me.
She was also sentenced to 4 years in prison (2 suspended) and a 100k€ fine.
But she will (already has?) appeal this ruling. The ineligibity, however, was ruled to be immediate, even while the trail is awaiting appeal.