I don’t know, having spent a significant amount of time with Airflow and Superset, their analytics stack must take an army of engineers, product people, and analysts to use. They have to troubleshoot issues with visits in real time. They have to not double book properties and keep an audit log of every crazy thing hosts do, and detect all kinds of fraud, all while supporting global localization. The have municipal level compliance to manage, and I’m sure a huge back office to help their various legal efforts.
I’m convinced that any business that operates at global scale needs an army of engineers doing, training to do, and coordinating across hundreds of technical areas.
Or is hiring engineers somehow so glamourous that doing so outweighs the profit motive?