@brakcounty Well done!!
Where I also see value in this is if someone wanted to hard drive boot into iPXE then from iPXE into the hard drive or FOG without using PXE booting. Instead of a usb drive, everything could happen off the efi partition on the local hard drive. It would not solve the secure boot part of it, but its an option.
Also lets say someone wanted to setup a preboot menu (such as for dual booting) using refind. Your idea could be tweaked slightly to boot into refind menu manager and then pick to boot windows, linux or something else from the refind menu. There are a number of options this method opens up. Again, well done!