There's several parts to that answer. First, we have started to rev version pretty quickly upstream so it makes the version "seem" older. The second is, we have to standardize on the version released with RHEL 8.0 months before the launch which created a bit of a buffer. The third is, we missed the window to do a rebase in the fast stream (container-tools:rhel8) at 8.0.1 which would be giiving us an update in the next few weeks.
Long story short though, this is a temporary state. We will be updating to 1.4 or 1.5+ (depending on where upstream is) in November, and continuing to update the fast stream every three months after that. Also, we are working on upstream containerized versions of podman/buildah/skopeo to alleviate this pain. For now though, I would recommend Fedora for latest/greatest.
Hopefully that helps