Terraform is such an underappreciated tool. It seems like so much of the hate surrounds HCL1 (back in Terraform before 0.12) and doesn't reflect modern Terraform.
For example, after introducing `for_each` and dynamic blocks, it's possible to nearly entirely ditch variables files and local modules, and just add more infrastructure by editing a local YAML file. The only variables your Terraform code should have should be credentials / other secrets that are not loaded from environment variables by providers. A great public example of this usage pattern is supplied by https://github.com/concourse/governance to manage their GitHub repositories.
For example, after introducing `for_each` and dynamic blocks, it's possible to nearly entirely ditch variables files and local modules, and just add more infrastructure by editing a local YAML file. The only variables your Terraform code should have should be credentials / other secrets that are not loaded from environment variables by providers. A great public example of this usage pattern is supplied by https://github.com/concourse/governance to manage their GitHub repositories.