Swapping to compressed memory by default

I just installed Fedora IoT edition for the first time, version 33, and was surprised that by default there was no swap to compressed memory. I understand that other Fedora editions have been enabling this, and it seems like something that would be of particular benefit to small devices with slow storage. It was straightforward to enable this myself (rpm-ostree install zram-generator-defaults), but I wondered if it was an oversight that this is not installed by default?