The way I quoted your post made it seem like I was contradicting you pointedly, but I wasn't really. I still think taking a year or two off after college is a good idea generally, not only to improve one's grad school chances but really to live and mature a bit, but there's probably no great harm in applying now and seeing what happens. Once in school he/she could also defer or take time off.
The debut statistics are sobering. I should also say that my references are mostly filmmakers who you'd call "independent" and "artists" and some documentarians. You see their stuff at festivals and film archives and in limited releases. Their satisfaction lies in being recognized by a small but informed and critical audience. If they're lucky they get collected by a museum. Once in while their docs get put on TV and netflix. Often they supplement their income with teaching, which they may well enjoy. Perhaps the OP would be a happy and fulfilled person doing those things.
If the OP's goal is to direct big-budget Hollywood features, then I don't know. The statistics for that are not just sobering but terrifying. Before he lists the debut statistics, Bordwell states in his very opening, "Your prospects are almost nil."
The other interesting fact was that some Hollywood directors dropped out of film school to start their careers because they met the connections in film school they needed to start their directing careers. A good school is going to expose you to producers, studios, and other influential people in the industry.
Hollywood likes young directors because they are in touch with the target audiences. But you have to know someone that will give you a shot.