That's right. No need to take the entire door panel off. Remove screw from the handle, pull handle out, disconnect metal cable, install new handle, lock the metal cable, and put the screw back on. You're done.
I've replaced mine..I think ALL 8th gen interior handles break eventually.
Instead of buying a replacement, I just swapped my rear door one with the front
2 important notes when doing this:
1. After you've removed the screw, slide the entire unit forward then GENTLY pull it
away from the door panel. It will not come completely out since its still attached to the rod.
2. After you've slid it forward and pulled it out a little, you'll see a white plastic fastener that
holds the hooked end of the door rod to the handle hole. Use needle nose pliers or hemostat and lift the fastener away
from the rod to unfasten it from the rod. It will pull away like a hinge.
After you've unclipped it, you'll be able to take the end of the rod out from handle.
Here's some helpful pics from a DIY on door panel replacement, which includes removing the
interior handle-
http://www.taimelwillhaden.com/2009/03/how-to-replace-exterior-door-handle-on.html
Let us know how it went.