Yeah it is the same deal. You are just tapping directly into the AV and wiring it directly to it and having the output on the back of the console. Both ways still offer amazingly clear 480p.
Honestly it is far more work than it is worth to most people, getting a Chinese VGA cable on eBay for like $15 is a much better solution for others. But, if you are wanting to just pimp out your DC and give it more features then have at it Haas.
I for one always like seeing others mods.