The examples were written to be as similar as possible and tested to work across all three major GIT services.

Keep in mind, they are examples... the text states "...you can use...", not "...you MUST use...".  I'm sure there are many combinations which will work, and nothing in the existing guideline prevents you from using the syntax of your choice, as long as it accomplishes the task at hand.   

If you DO want a guideline revised, you need to open a ticket with the FPC so it can be reviewed.  The FPC will then vote as to whether or not to make the change.