Stenography relies heavily on a highly-trained stenographer to do the recording, and on a similarly highly-trained individual to turn the record into recognizable English. Trying to use that for writing code, where you don't have the redundancy and patterns of English, is a bit like trying to use Swype to transcribe telephone numbers. Wrong tool for the task, period.
I wonder why parent was modded as +4 insightful? There is no need for "similarly highly-trained individual to turn the record into recognizable English" because transcription software (commercial like digitalCat or opensource like Plover) converts keystrokes into the text. On the fly.
Nobody is going to code at 220 wpm. But what about writing decent documentation? I wish I was able to write documentation, comments in code and emails much faster then I do.