We use recurrent tasks for our company team meetings to support workload review/availability for our team. This means that we have tasks set up through the end of the year (and have 4 different meetings currently each week) - we elected not to use the create as it goes function because that would nullify the purpose which is to see that time booked for the team weeks/months in advance.
As a growing firm, we are adding new employees consistently. While the creation of a new recurrent task does not create mass notifications, updating the series does. These are tasks that the team really does not need notifications on, it's a place for them to charge their time within Wrike and book that time in workload chart.
Being able to toggle off notifications (or have the option to set to mute when the recurrent task is created) would be a great help, as currently I have my team getting mass emails & wrike inbox notifications every time I have to update the series.