I would have said it needs to taper off, not just stop, but reading it described in black and white made me think "actually, why _not_ just stop at a threshhold?".
If you can get 2k a month (all numbers pulled from my butt) in disability support, and at some point get a job offer which will give you the same, why _shouldn't_ you work? Non-monetary forms of support should probably continue, or even be increased, depending on what you're going to need to be able to work.