I think most smokers would probably thank them for it.
My friend and Best Man at my wedding (married to the cousin of the ex) looked very similar to the man pictured above, if not worse, before he passed away last year aged 69, from Pancreatic Cancer.
He'd always been a heavy smoker, and smoked up to the end. Nothing to lose then I suppose.
It was very moving to see the two young sons he so adored reading out their eulogies at the funeral.