There is lots of crazy speculation about the Tornado, so as an owner and an internet expert, I will add my opinion. When the Tornado became available as an add-on with the Forge, it was a concept. If you go back to the first released 3d isometric view of the device, it is not the Tornado that I and others have. So when the Forge was being designed there was no Tornado to test it on, this is why it works great on the Anvil and has issues with the Tornado (mine worked fine with the Tornado).
Vestratto said at one point that the Tornado was coming with the WPA because they felt it was too hot to use without water. Because of this decision the Tornado was made to fit the existing WPA (mine are identical except the thru hole size). The Tornado was made to fit tight to the WPA, and it does just like designed.
I use my Tornado primarily on my OG Anvil stem and I use a J pipe. By the time I finish half a bowl (10 to 15 drags for me) and hit the second click my stem is rather hot and even the heat shield gets warm. I guess my point is the ceviche gets very hot, however the vapor is cool enough for my wimpy lungs that water isn’t necessary.