|A Round Handle?
That being said, it's a great intention to try and save water, we Americans waste so much!
I'm pointing this out because is it design, is it engineering? Certainly it's a cross functional team, and I think they can do better. Sometimes you don't know the best way to do something until it gets out in the field, and this is a nice simple example that can help convey the kind of decisions that engineers and design people make about form and function every day. Don't get me started on faucets... they's generally horrible.