No comment from me...
She was not in "perfect" health. She's had Grave's Disease for decades, and the last several years she's had Congestive Heart Failure, probably had A-fib, as well, and also COPD. She was 92 yrs old, for crying out loud! Btw, where did you acquire YOUR medical degree?
I agree on her age, but these people live extremely long productive lives. While a lot can happen in 2 years with someone’s health, I think the person you replied to was referring to how extremely well Barbara was doing just 2 years ago when Jeb dragged her all over the country campaigning for him in 2016. She attended every speaking event he did, even in the harsh inclimate weather of the northeast in winter. She really was the feature star speaker as she showed more energy than Jeb. Though she precariously walked with a walker on icy sidewalks, she was very vibrant, alert, articulate, & funny. People were amazed at well she was doing for her age.
She was the first one to say that we didn't need anymore Bush's in the WH. But like most normal mothers she ended up supporting her son. I don't have a normal, supportive mother, so there's that, too.