Yes... If you do a Forum search, you'll see that many members with hand weakness like the Handi Packer for the range.
Some have written about not being practical for Self Defense use, but...
1: Many don't even carry a spare mag
2: Practice to do tactical reloads to where you're (or She, rather) reloads BEFORE running out of bullets (to the point that it becomes 2nd nature to reload before running out), so she doesn't need to rack
the slide.
If she's not going to carry and only going to be shooting at the range... it's a non-issue... Get one.