I have a steel bike too, a Bianchi Veloce. It has a carbon fork, I was talked into keeping the fork carbon too. I hope "they" are right. I trust steel a lot more than carbon, i have had friends recently who are having troubles with their carbon components; handlebars (carbon!!) broke, and a carbon crank broke too.
Good old steel. good enough for me, and feels good.
enjoy your new bike.