This was true in 1998. Cowardly companies that insisted on being able to pay support for anything they deployed were able to hand over $$$ to RedHat then tick the box of 'support'. However, as we all know, you get a Linux user/expert to fix the server, you don't call RedHat.
Due to the success of Ubuntu you have user/experts in small to medium sized companies that have 'given Linux a go' and got some good experience of Ubuntu. They might prefer the Ubuntu ways of doing things, e.g. the 'no root' security model, the modern, up to date packages (e.g. latest version of PHP), the ultra easy firewall and plenty else.
However, due to the perception that Red Hat is 'enterprise' and that small to medium companies re cheapskate, the CentOS rip-off gets specified by micro-managers because they have heard it is more 'enterprisey'. 'They know best' and go with the turgid CentOS regardless of whether any developers on the team would prefer something else.
You then have a lot of hosting companies pushing CentOS because they think it is more 'enterprisey' and what their customers want. Non-technical managers listen to them and then blame their team for any server problems.
Sure, if you know your way around Red Hat it is the greatest thing since Windows 3.0, you can get it to do what you want just fine. But, actually, if you are not an expert yet then very little about Red Hat is obvious. Far too many answers to common problems are guesswork in forum answers that you come across. Furthermore any serious claim to better security goes out the window as soon as you add random repositories that you might need just to get your work done.
Red Hat has had its day. CentOS has been a mere rip off of Red Hat and it has not added to the state of the art. I know it has its fans but I wish it would just go away.