The Direct CD/DVD copying would be a good solution for those requesting support for compressed image formats like i did (ISZ, DAA, UIF, CISO, etc) or other unsupported formats, because one could simply install a free virtual CD/DVD emulator that supports the requested image (alcohol 52%, Daemon Tools, etc), then use the "1-click copy" to burn from the mounted image to the burner.
I know you suggested the "2-clicks copy" method, but that implies decompressing and writing about 4GB to HDD that is already in the HDD but in compressed format.
I hope this point of view makes this suggestion a little more "desirable", as it (sort of) combines several requests into one solution