Is the space-bar a valid in concern in dicewar…

Is it a valid concern to choose a character other than space for a word separator in a diceware passphrase? The space-bar generally makes a distinct sound, on mechanical keyboards and these days even on some handhelds, so I wonder if that makes it feasible to tell the word-count as well as the length of each word by only hearing the keystrokes.

Or maybe this is fixable in the word dictionary, by making sure all words are of equal length?

Found here /// Privacy Galaxy!