It doesn't directly claim that, however calling these "The Five Stages of Hosting" implies that an application will likely progress through these stages as it grows, and that application platforms will be quickly outgrown when any sort of scale is reached. That's a pretty clear implication from the title and I'm calling for counter-evidence, because I don't think it's accurate.

I also host on Heroku applications that I hope will grow, and if that's a bad choice, I'd like to know others opinions.