raster - Convert a KML ImageOverlay to World Files with GDAL

I have many raster outputs from an Open Source radio transmission topographic path tool called SPLAT, georeferenced in KML image overlay format.

I have figured out an easy way to use tools to convert from KML Image Overlays to PGW World Files using this small Java tool (which has fallen off the internet, I rebuilt it from Subversion repo):

Is there a way to use GDAL to make this conversion more script-able?

If I were to implement a simple script to write out world files would there be any gotchas?

I realized I had originally referenced Create world file from kml a few weeks ago, don't miss that one.