No the one you mention would have been rebuilt using the source files not an existing model converted which is what the thread is about.

Even with source files you can't convert as such only replace some bits, change the way animations works and a whole host of things that really means only the basic, dead, untextured shape is re used.

BTW models should not be edited of changed in any way without the express permission of the author.

Unless of course the models source code is made available for such purposes, but mostly it is not.