Comment by annexrichmond

That might be fine for small teams, but any 100+ person company would already have their own abstractions and don't need to reinvent those wheels just for Airflow. But even if you're smaller I still think you're setting up for failure if all your biz logic is within Airflow unless you are careful about making it reusable/shareable for other contexts. Eg, what if you want to convert some scheduled pipeline to some event-driven architecture with other systems? That means needing to refactor everything out. It's not interoperable or modular and that's why it should be avoided.