Gitops: The Bad and the Ugly

There is an interesting discussion going on in r/kubernetes about the limitations of gitops. There are good reasons for adopting GitOps, but the linked article points out 6 downsides:

1.Not designed for programmatic updates 2.The proliferation of Git repositories 3.Lack of visibility 4.Doesn’t solve centralised secret management 5.Auditing isn’t as great as it sounds 6.Lack of input validation

Who among you has tried to implement a full GitOps setup? And what was your experience?