Earlier quoted context omitted.
Ansible is emphatically not Python. Ansible is YAML with Python extensions. The model you're describing better fits Chef Zero. (Which is excellent, and is the tool I would go to were I still in a shop that needed instance-level CM.)
Ansible is written in Python, and all the core modules are written in Python. Using YAML you are passing arguments to the Python modules. This is also why Jinja is used. https://docs.ansible.com/ansible/latest/dev_guide/index.html
Did it sound like I was unaware of this?
The user interface is YAML. It is an awful user interface and it adds nothing except complexity to the effort of making systems work. Expect people to write well-factored code and to treat the entirety of their CM as code and they will do so.