Canonical has a business to run. If their business does not need a new kernel built for their testing then no one has the time or resources to fix any breakage with the automated mainline kernel builds.
Until Canonical chooses which new Linux kernel to use for Lunar Lobster testing it is unlikely for these mainline kernel builds to be fixed. I suspect Canonical will pick 6.1 as it is an LTS kernel but the Lunar release is not an Ubuntu LTS so who knows ?
Anyway Feature Freeze is the end of February, so for sure it will be fixed by sometime in February.
Also Ubuntu Testing week is in March.
See Lunar Lobster Release Schedule