It does seem strange (I read the article). Neighbors complained of the stench, and the couple had 288 cats in a 2,000 sq. ft. home. It seems the main reason they're moving is because of the complaints, not because it was the right thing to do for the cats - that's what I pick up from the article, anyway.
At least they're moving to better quarters, and hopefully the cats will be properly taken care of - but why not try to rehome them?
There should be laws for cats just like there are for dogs. It's almost more important for cats - they're far more territorial than dogs. Cats aren't pack animals.
Why cage them? Why not move to the farm and practice TNR? (Trap-Neuter-Release). Provide shelters, etc. Info about TNR: Alley Cat Allies Information Sheets Selection Page
I agree - something seems fishy here.