When you say that "recovering a fully bricked wii" is on the works you mean something like a bootable DVD with Wii OS setup? That would be great!!! Everyone then will be able to test and experiments with their wiis without the fear of full brick their machines. Even new updates can be overwritten with a tool like that.
The "write image files to disk" should have been the correct option. It would need to be burned to a DVD. Burning this should be just like burning a game.