Yes. The correct take from this article is to change your lifestyle until you have strong hands if you want to live longer, but don't focus on getting strong hands specifically.
Yup. The right lifestyle leads to all sorts of beneficial side effects. I moved off grid about two years ago, and since, have become leaner and fitter than I have been in my entire life, with zero deliberate exercise. I hadn’t considered my hand strength until just now, but it just occurred to me that I’ve had no carpal tunnel symptoms in at least a year, although I still do plenty of typing and fine manual work. I also do a lot of heavy carrying and lifting and digging and all the rest. Prior to this I was a desk jockey, living off processed crap - now, barely a day passes when I don’t find myself doing some kind of manual labour out of necessity. Honestly, it feels great to live like a human is built to live. We just aren’t made for the sedentary lifestyles we typically live in developed countries, and it’s killing us - and advice like “use a hand exerciser” is the absolute epitome of treating the symptom, not the disease.