@WCT
That could be abused.
And if he abuses it, the ban goes back to perma. Prosecutors and parole boards make agreements like this all the time. "We'll give you a chance to make amends. But screw that up, and you go back to the full penalty." The point is that it's not just "Well, we'll lower the penalty with no strings attached," and neither is it, "Nope. Sorry. One strike and you're out. No chance to make amends."