Nothing is for free, but the article clearly states that the released RHEL doesn't have good enough ARM support, which means CentOS/RHEL 6 can't do ARM well. I

Nothing is for free, but the article clearly states that the released RHEL doesn't have good enough ARM support, which means CentOS/RHEL 6 can't do ARM well. If the CentOS project decides to take on ARM when RHEL is released, it's a matter of resources.