Most likely, but I don't know how to do a search for it.

The more items in your menu the slower it is to find things in it. I can type NY faster than I can find New York in your states menu (I picked a state near the middle to ensure you have to scroll, but can't scroll to the end which might be faster if you know).

Tog was forced to back off his claim, but this wasn't publicized as much. A well trained expert with key shortcuts used all the time is faster than someone with a mouse - but if you don't use the shortcut often, or there are too many keystrokes the mouse wins.