It's more likely to work?
long gaps of unemployment aren't appealing to employers, so if you can prevent them having a long gap you make it much more likely they'll be back in work before they reach 5 years on the dole.
what retard would wait for someone to be sat on the dole for 5 years before doing something about it, tackle it early so you don't have to pay 5 years of dole before you get them back into work.
It's the sentiment behind his point that is decent - i.e. make job seeking benefits harder to get the longer you are on the JSA.