Everything is reproducible. Things that have no reason to be tangled up are, in fact, not tangled up. If that doesn't sound advantageous, I don't know what else can be said.
If that doesn't sound advantageous, I don't know what else can be said
I mean specifically with regards to configuration management: that is, managing the part of software that developers intend to be modified so as to change the behavior of the program.
Maybe I just don't understand, but I don't see how this does anything to advance current config management dilemmas like how to merge a new upstream version of a configuration file with your site-specific changes; or how to deploy similar changes to large numbers of nodes at a time.
Modifying files in a git repo which are deployed to $ETC by ansible where modification triggers versus modifying files in a git repo which are used as "inputs" to a functional operating system seem like a largely cosmetic difference to me.