Two of our kids and I were on this trail yesterday; there were LOTS of dogs and owners on the mountain. Many were fine, but others seemed distressed by the environment, needing carries over the difficult parts and generally wondering what they'd gotten into. Most were off-leash, and some were lost and looking for their owners.
We did go through the falls area and up the other side (up and around the top); it was challenging, steep and slick..., and very beautiful.
We saw the first vehicle when we exited and others soon arrived. There were between dozens and hundreds of cars in the area, so we boogied out of there and wisely took the Bear Mountain road to avoid the crowd. We wondered what had happened..., and I knew we'd find the answer here (thanks!). I'm glad everyone survived; it's another cautionary tale.
Our Henry, a 4-year-old yellow Lab with lame-o knees, does not hike. If I really invested in getting him trail-fit, he could probably do okay, but there's no way I could carry him over the summit slabs. Of all the many dogs I've seen on the trails over the years, I'd guess that more than half weren't too happy to be out there. Chocorua on Columbus Day weekend is probably 80% casual hikers (vs. the 20% avid [prepared]); I guess the dogs fit the same profile.
The rescue crews didn't really look too pleased, but maybe I'm over-thinking. Thanks for the update.