Not sure, I just thought this was more feature rich.
One thing the old one does (wrong) is that it counts with fixed dpi ratio tailored for old InkScape releases. So in order for it to work I need to put '3.54331' constant to 'Scale X' and 'Scale Y' properties in 'File > Document Properties' dialog or I have to remove divisions
in produced *.scad files.
I believe your version no longer does this. So one step less in the post processing for me :-)