That works AND the feature works!

YEY

Quick follow up question, is there any way to abort a pipeline and all of the tasks it ran?

Hmm yes currently if you abort the pipeline is has no "time" to abort the running Tasks (the DAG itself will stop, because the pipeline controller was aborted, bit the running Tasks will continue).
In order to have better support, we need to add a previously requested feature for "abort" callback. This is actually not as straight forward as it sounds.
The plan is to get the pipeline for the next version (this includes improved callbacks and automatic step reuse), then for the version after that, to add the abort callback.
wdyt?