It's not that old people aren't worthy of protection, but when you're 85 in the US you have a 10% chance of dying in the next year for any and all reasons.
So saying this disease kills 15% (for example) of 80+ year olds without context sounds horrific, but contextualized in the actual risks of just being very old to begin with, sounds much less scary.
If Italy, for example, were to report on the number of fatal infections in people younger than the natural life expectancy, the fatality rate would drop in half.