Actually that sounds quite nice.
I'm sure someone like Rethburn could torture his crew with "MANTHEAFTGUNSMANTHEAFTGUNSMANTHEAFTGUNSMANTHEAFTGUNSMANTHEAFTGUNSMANTHEAFTGUNSJFIEHFUHFEUHFUEHFUEFHUFHUWHIWJDIWJI*WHF*UFJ"
In all seriousness, yeah, if you don't have a mic, voice commands are pretty important in the midst of battle, and having to wait a couple of seconds to tell your crew where an enemy is that isn't spotted right after tellin them to repair the engines isn't that fun.