On Fedora, crond's default PATH does not include /usr/local/sbin so the hourly, daily, and weekly jobs fail to find zfs-auto-snapshot with which properly, whereas in the frequent file, the PATH is set at the top so it executes properly.
Adding a symlink in /usr/sbin seemed to be good enough to make it all happy, but out-of-the-box, only the frequent snapshots will run.
Mostly just opening this issue in case someone else runs into the same thing.