Linux admins are still required to be careful in hardware selection. And with respect to modern graphics hardware, as has been the case for years, the only choice is Nvidia. No other vendor has choose to support Linux as a primary driver platform. Yes, they don't play by the opensource rules, instead they play by the rules that everyone else on the planet uses. It would be nice if sites like the would get that and remove the extreme bias in their reporting. This article was great until the last paragraph when it went off the deep end.
In short, Redhat makes the choice to not ship fully functioning drivers for Nvidia hardware. Since other OS vendors are able to do so it would seem the problem resides within Redhat not Nvidia.