Hi @Olive and thank you so much for your kind feedback! That makes complete sense, but it is not possible as it stands as we don’t have (yet) an action to create and assign a task when an Approval is marked with “Changes requested”. The best option right now might be to “add a comment” and reassign the approval > this way you can at least keep track of every steps taken in the process! I’ll go ahead and escalate your feedback but can’t say just yet if this is something we will implement in the future.
@Brian_Massey, so glad to hear you’re enjoying this update! If you haven’t yet, I would recommend upvoting Rule to unmark as done or mark as "not completed" With the arrival of approvals this feature request would be even more impactful, so hopefully, this is something we can introduce soon 
I’m closely following feedback in the Forum and in Asana, I’ll be sure to keep you posted via this thread if I hear anything on this topic! In the meantime, if you or @Jonathan_Flowers would create a new thread in #productfeedback it would be super useful to track feedback, I’m sure a lot other users will be interested in voting for it!