Why the heck do I have to install something just to watch a video online?
MPEG-LA licensing or the legal hell of USA-based organisations is a risk to small projects like Fedora, so where possible they cut the risk and lay it on users decision to use propriatory licenses.
At least that is how I understood it. I don’t know how Arch Linux and Debian (i.e. pacman and APT) don’t have that problem.