There's a feature here I don't care for--though it may not be an issue for others. It's something the SS Brew Bucket has that this does not.
The diameter of the SS Brew Bucket is 12.5". The width of the Anvil offering (Handle to Handle) is 16.5" while the depth is 15.25".
The Brew Bucket maybe could fit in my little mini-fridge ferm chamber; the Anvil could not. I don't know, exactly, why they make them this way, but if the handles were fore-and-aft, instead of port-and-starboard, it would be easy to fit it in that ferm chamber.
So I'll be honest here - It took me a second to figure out what you meant by this, just because I've never seen a kettle that had the ball valve/port underneath the handle. That said, it kind of makes sense. I can't imagine a situation where I'd be using the handle & ball valve at the same time, and even if I was, having it underneath the handle doesn't sound like much of a disadvantage.
But, even in my head, it looks weird. I doubt any company will ever make one that way just because the market wouldn't expect it.