Support for SVG transform attribute is finally included in the shape key import add-on
You can now scale, rotate, translate and skew the grouped objects in the source SVG; the transformations will be applied to the imported paths and shape keys.
Also, Blender 2.8 compliant version of the add-on is uploaded to the repository.
Have fun! And do let me know if you come across any issues.
Download path: https://github.com/Shriinivas/shapekeyimport
2.8 beta Add-on File: shapekeyimport_2_8.py
2.79b Add-on File: shapekeyimport.py
Enhancements Overview: https://youtu.be/o6oCFZsM87M