I don't see a problem with it, It makes a beautiful child theme for a small business. I am using this theme for an optometry business, using WP for the first time. I haven't used many themes, but I feel it's much easier to understand, and makes better use of space over 2013. I understand WP is considering a different approach on 2015, toning it down to focus on core features, but I think this them is pretty genius. I haven't had to use a single custom_post_type. Not that they are bad, but they are somewhat over my css driven background.