If you are happy with your ball head, more power to you. I use mine a lot for smaller cameras.
The reality is, I can probably hook my little Crown Graphic or RB Auto Graflex 4x5s to just about anything and make it work.
But when I have my Deardorff or Cambo Monorail 8x10s attached to a tripod that is standing on a cliff overhanging a rushing mountain creek, and there is a stiff breeze blowing down the canyon, I personally like my tripod and camera to stay put; even while making minor composition changes.
But that is just me.