First things first :
There isn't really such a thing as A "Rehab" Exercise.
There are only strength and conditioning exercises, which we use for rehabilitation purposes.
That said, some things get pigeonholed as 'rehabby'. And that's fine - they crop up a lot more often in rehab programs than as #bro-sesh #hypertrophy #gaainnzzzz clickbait on TNation.
However, the reason these exercises tend to appear so often in a rehab setting is precisely because they target a weakness or a physical need in a specific, safe and beneficial way. And they don't stop being beneficial once rehab is "complete".