I think looking at the discussions here is even more surreal.
Airflow, Prefect, Dagster, Kedro,...
it appears there are now a lot of tools that I never heard of and never needed, despite me doing exactly what all of them try to solve with Hadoop and MapReduce.
I introduced Airflow to replace a precarious collection of cronned scripts in our ETL workflows and have never looked back.
The ability to rerun a failed DAG from a given task was ideal for the situation we found ourselves in at the time with a dependency on a Hadoop cluster that was starting to fail.
I believe that says a lot about open source projects released in recent years.