I used RH and liked it in the 90s, but since then I don't see why a RHEL-based distribution for server isn't a good enough option. I understand that is just being parasitic, but it is free after all- why pay for it? So, I think Linux is strong and will be strong with or without RH. Sure it's great that they provide a major paid option for customers that feel like they have to pay something, but I don't respect any tech company that pays for Linux because they feel they need to just to have the support. If they like the distribution and want to support them, fine. But, don't do it because you feel that you have to have support.
Also, I interviewed for RH several years ago and was not impressed. Their employees seemed fairly unmotivated, and despite the number of people I interviewed with, it didn't seem very well thought out. I didn't like their distro at that point, so it was a bad idea in hindsight to interview with them. I just didn't believe in RH anymore, and going there only solidified that.