I believe the idea is that RedHat will likely be more thorough with a commercial entity than they were with CentOS. Yes, I'm sure it's technically possible, but also possible they will get into some back-and-forth with RedHat.
Redhat debranded RHEL for CentOS. It was one of the things CentOS compalined about, so RedHat made it easier for them. Maybe it saved RedHat money overall by avoiding trademark protection (IANAL).
If there is a left over of Red Hat branding, you'd have a hard time proving any kind of purposeful infringement.