Especially when NJP is not necessarily what it once was . . . a kick to the junk but not necessarily a career-ender. Big Navy is much less forgiving. In such a case, it's good to retain a CO's ability to put a Sailor all the way through DRB and XOI, have them sign the paperwork, hopefully put the fear of God into them that they might be well and truly fooked, bring them in to Captain's Mast, rip them up one side of the ready room and down the other . . . and then dismiss with a verbal admonishment.
If nothing else, if that fails, you know they're stupid or foolish enough that NJP is appropriate.
I'm generally in favor of other options to be exercised before NJP, but I don't really get the value of Mast without some form of punishment awarded through NJP.
COs shouldn't have to flame spray or put on a show (unless they're actually making an example of someone), that's XOI's job.
XOI gets the documentation required to establish pattern of misconduct if they choose to continue to fuck it up.