Thanks for this suggestion. It’s on a list of potential features that we are examining for feasibility.
I can not say for certain that it will eventually become part of the product, although you are not the only customer to have expressed an interest in this functionality.
Okay, I figured out another workaround, for now. I am recording, in a table, when things happen during my Matillion jobs. Then I use my BI tool to read that table frequently, and alert me when something hasn't happened for a long time.