Went back and read the article...it seemed to "try" to give a balanced perspective, but in reality it seemed very pro-outdoor cat. It talked A LOT about the problems indoor cats can experience, and pooh-poohed the problems that outdoor cats can experience or cause.
This part made me laugh:
Indoor hazards may be less obvious but they do exist, for example: household chemicals, human medications, eating dangerous objects (elastic bands, needle-and-thread), pull-string blinds, electrical wires, crush injuries from toppled items such as stepladders, caught in slammed doors.
----
Any toddler-proofed home (and pet-proofed on top of that) has taken care of these things. The occasional "oops, I left a rubber band on the counter" moment seems so minor compared to "oops, the neighbor left out some antifreeze." And I'm sorry, but I'm willing to bet that outdoor cats are MUCH more likely to die by automobile than indoor cats are by toppled household items.
Quote: There are those who argue that any access to outdoors, whether on a leash or in an enclosure, is irresponsible as it exposes cats to risk of infection. Others view this as owner paranoia. It is up to each owner to determine what risks are acceptable.
A cat has no concept of its own longevity; it doesn't plan for the future as do humans. Some owners decide that the cat is happier and has a more enriched life with some degree of outdoor access. Others wish to protect their cats from all perceived hazards at all costs. Each must choose the lifestyle appropriate to their cat's enjoyment and their local circumstances.
-----
I also don't buy the idea that cat's don't care/plan about the future, and therefore they might prefer to live a more exciting/fulfilling life including outdoor time rather than have a long life indoors. My kids (not the same as cats, but just to compare) might have really exciting lives if they got into motorcycling, but I'm certainly not going to encourage that as a hobby. Part of loving something or someone is looking after them and their safety. I want my cats to live nice, long lives. I want them to be fulfilled and interested and happy. I don't see how they need the outdoors to have that. I don't think keeping them indoors is "protecting cats from all perceived hazards at all costs."