Nah...a commercial leaf blower makes frozen leaves fly really good. We used one of the stihl ones. With a rake you lift large chunks of frozen solid frozen organic matter that you have to try and rake away a layer at a time. I'm telling anyone that doubts it to go try it. A whole apartment complex worth of frozen wet leaves. You've got 3 hours to get it all done before moving to the next site. Try it. Do it one day with a rake. Then head back next week late autumn after a good wind and rain storm and do it again with a leaf blower and see how much faster and easier it goes.
