Thank you for the feedback! I was so focused on getting the Grease Pencil import working properly that Curves was left a little on the back burner. I'll add it as a fix in the next version.
Seems like a great addon. I tried to install it, but without success. It looks like this is a serious installation error. I wrote about the problem on github
Works perfect with shapes copied from Affinity. But when I try to copy/paste as curves any objects from latest version of Adobe Illustrator or Inkscape (v 1.4.2) I get the error message "Clipboard does not contain valid SVG: SVG data is empty" in latest Blender versions (4.5 and 5.1) for Windows