can we add those functions into Flow?
1. Failure notification: when flow fails on a step, it should notify the owner/admins so that they can take actions;
2. Exception handling : when there is an exception, can we add exception handling codes/switches in flow so that certain level of redundancy is there;
There is a way to 'configure run after' in Flow. It might not fulfil all your needs, but its better than nothing..