Please consider a project with following publishers in this order:

• A publisher with a bug throwing an exception in its aggregation. (publisher A)
• A publisher sends notification with its aggregation. (publisher B)

In this case, the aggregation of publisher B won't be performed.

Of course, I agree that I should fix the problem in publisher A.
At the same time, I don't think it's useful that a bug in a publisher disables following aggregations. It may prevent notifications from sent to users.

I want matrix-project perform all aggregations even when any of them fail.