and so easy to violate. They'd rather finish their bid in jail. That's not just my anecdote, either. It is well known in the cj community. It is supposed to give inmates guard rails so they learn to live clean, but with the complete lack of support and resources they leave prison with can make it super hard to fulfill all the requirements, which are much stricter than anything you or I is expected to do in daily life.
It's possible the violation was for committing a crime, but if it was, wouldn't there be a warrant for that, as well?