I don't know OP's wife, maybe she is having terrible luck.
I know that two years is 4X as long as they actually paid in, though.
It should be severely qualified if you want to receive money at this point past your 26 weeks that you actually paid in; the rest being gravy. E.g. when you do find work you'll have to pay back via wage garnishment if necessary, 50% of what you got or something like that. Also, if in OP's example him and his wife are not living hand to mouth then she shouldn't get it; that's what spouses are for, aren't they? Only the bottom tiers of society actually need two incomes to make it unless they have a spending addiction anyway.
I've been out of work six months before. It felt like a lifetime. Sucked and was demoralizing Two years is really fvcking absurd, and this is a bad economy but at some point you have to smell the roses and think "Sh*t, it's time I get an edumacation", maybe switch fields. If you have a degree already you can short-track to become a registered nurse in a year, for example.
Nobody has dared come up with a percentage of unemployed who are basically bone-idle tits and just playing xbox all day. There are undoubtedly many, however, who fit the category.
I have no idea how many "deserve" this extension.