French still changes - just more slowly than some other languages.well no, English is dynamic, everything has changed from Elizabethan times, as you may have noticed if you try reading Shakespeare with out an introductory course, and of course shakes spear has been modernised so it makes a modicum of sense.
a better comparison would be French, that has refused to progress, to the extent that they have a department to ban words like carpark and weekend, that where tradition gets you a dying language or a dying art
But it feels like you're arguing for the sake of argument on this one.