Red Hat is a proud contributor to all aspects of the software stack, from the operating system and developer toolchain to middleware, desktop, and cloud. We financially support a number of open source organizations who help us create and maintain better open source software. We also contribute to a wide range of standardization efforts that help define future, interoperable technologies."
If RedHat were exaggerating, then those named communities would have called RedHat out by now.
I've seen plenty of posts on Twitter, Medium, on the Fedora mailing list, and elsewhere by individual contributors and industry veterans (some of whom had storied careers at Red Hat) who are not happy with Red Hat's decision.