Yeah, the roads are bad.
I commute from St.Vital to the airport through some rough patches, but it's not as if my road bike can't handle it (23c tires). Broke one spoke this year, and first one ever (wheel has > 10,000km on it).
I've never had a flat that was the roads fault (under-inflated tires and glass? yes, a couple times).
and as far as bumps being devastating to carbon, I've commuted on my race bike, and have never questioned the capability of a carbon frame/fork on our roads. It's stronger than most people think.
there is alot of room for improvement though, and it would definately help get more people on bikes if roads were in better shape.