I just wonder why he didn't boot up an Amiga emulator and copy the files out that way. Could even run DiskSalv on the disk image to look for data in the slack space. Or he could have used a tool like what comes with ADFlib (https://github.com/adflib/ADFlib) to do it. This seems like a thinly-veiled ad for AI and for this person's company, at the end.

Edit: I loaded the ADF into WinUAE and ram it through DiskSalv to check for deleted files. There were none.