Quote - That would save time for those of us that don't use or understand other software.

You don't need to work with or understand the software that the image was created in in order to give an opinion as to whether you like the image or not or if you see flaws or deemed imperfections that strike you as needing improvement.  The important thing is the end result, not the tools that created it. 

I don't paint, but I can look at a painting and tell if there aren't any shadows, or if the eyes are crosseyed, or a tree is hanging in midair instead of looking planted in the ground. 

Just make sure you indicate that you aren't familiar with the software and that you aren't able to provide possible solutions.  There is no reason why you can't give input though.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi