I do have an issue with pushing the high carb food in general. While I completely agree that in exercise you have to fuel, and sugars are the best way to get fuel in, I have a major issue with encouraging the high carb food outside of exercise.
In that Fast Talk podcast, they ended up talking about nutrient density as a much better metric than pure high/low anything (carb or fat).
I know what works for my body, and it is not high carb, even on the bike I am not consuming huge volumes of sugar, but I do use as it is the easiest to keep food coming in. Distilling this to a sound bite for a podcast is crazy, and I cringe at the older trainerroad podcasts talking of how much low nutrient food was being consumed off the bike to hit some mythical number.