Apparently a climber had one on and broke his ring finger, and the EMTs couldn't get the ring off because the finger had swollen and they couldn't cut the ring due to the strength of the metal. They ended up having to amputate and re-attach the finger (much longer and it would have had to be amputated anyway, it seems).
Terrible for rings, just go with silver if you want or need a cheap wedding ring.
Titanium / Tungsten / Silver are for people who want an inexpensive ring.
Titanium should also work great for forced amputation in the case of a broken finger I suppose...
Every metal mentioned has someone talking about losing a finger. Do you work for a silicone ring company?
For me, before I touch a lathe or mill, the ring goes in my left back pocket. Every time.
To wax poetic for a little while, Ti is lightweight, strong, warms quickly to the touch but isn't cold in winter, resists abrasion, doesn't irritate, and is almost immune to corrosion. Its strength allows a lower-profile ring without collapse, too. When making rings for our wedding, I could have used any material under the sun; titanium was our choice.
A material need not be rare to have significance, so it is with love.
I also have to test Sterling Silver as it is supposed to only be 92.5% Silver and 7.5% copper but sometimes it is adulterated with nickel and can cause me to have a breakout.
They'd also know that you can crack a tungsten ring, so they wouldn't need to do that in the first place.
Thankfully the article you linked doesn't contain any images.
Similar advisories hold for printing presses, farm equipment and so on. Printing presses are particularly nasty because they tend to be so spotless that you can't tell if they're rotating or not by looking at the surface.