I don't think there's any FUD in the article. There are concerns about the project and you need to understand the difference between CentOS and RHEL. What you get and what you don't get.
I've done many CentOS presentations promoting CentOS on the basis that there are some benefits with CentOS, but there are also drawbacks compared to RHEL and there is no point to not put them on the table when you want to convince people.
The last thing you want is users that are disappointed afterwards because of what was promised. You can find the presentation slides (including notes) of the presentation on the CentOS wiki at: