I agree with you.
However, when I think about it, if they did trade Swanson, stick Nico at SS. and put maybe Shaw at 2B it would free up a lot of money. Enough money where it wouldn't hamstring this team elsewhere to go after someone like Skubal.
That said, 1. it's probably a downgrade in WAR on the middle infield, and 2. It very likely doesn't happen, and 3. I'm not even sure i'd do it anyways