Should permanent alimony be allowed, or is it fundamentally unfair?

Seems a simple question.

There was a story I saw recently of a woman who was divorced from her husband 17 years ago. She's been married to new husband for 10 years. Her and her first husband were married for 7 years. She divorced because he caught her cheating. She was granted "indefinite" alimony. Recently he had to have a knee replacement, was forced to sell his business and is now permanently disabled and only making retirement and SSDI. He took her back to court asking to discontinue the alimony. To which the courts granted his request. The woman on the other hand was livid, stating that she should be receiving it for the rest of her life, even if it leaves her ex husband destitute and unable to eat. The judge cited two reasons for ending support, reason 1 she's been remarried for 10 years, and 2, he simply cannot afford it and survive.

In this case the judge made the correct ruling.

In my own state alimony/Spousal support is capped at 3 years or until the supported spouse gets married which ever comes first. As it should. I think permanent alimony is criminal, and any judge that grants it should be removed from his position.
Should permanent alimony be allowed, or is it fundamentally unfair?
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