FWIW, I did find the following commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=487fae09d7e266a58a13784983cc1ef6a2076526
which seems to reintroduce a new “fatal_neterrors” mount option to handle container network teardown cases. (Not yet documented in the man page and likely not applicable in the OP’s usecase).