I saw that video earlier.
MVG prefers the software exploit over RGH. It's good to see. RGH offers a few advantages but overall it isn't needed anymore for running homebrew and backups/mods. Without it modding the Xbox 360 would be more difficult because even Ryan used an RGH when developing the exploit.
I do respect though what it has allowed as well as JTAG.
Now though, RGH is a risky method that, to me, isn't worth it when the software exploit can do almost all that an RGH console can.
Every now and then I see posts on reddit about RGH consoles having one problem or another. Usually not booting because modifying the nand is breaking the proper signature(s).