Fedora was the Linux distro that got me off Windows, and one of its main fortes, in my opinion, is its stability. I've very rarely had issues with using the OS, and anything that I have encountered was both easy to remedy and fixed pretty rapidly. So, as you might expect, if a new release of Fedora has a few nasty bugs in it, the community would rather delay the release than ruin the trust people have in the OS and ship it.