The new 'Publish' button that has been added semi-recently has caused snapshots to be significantly less useful. Previously, you could make a funnel change on your template, then snapshot that to all client accounts and each client account would be updated, without any additional action.
Now, when there is a universal change, you have to go into every single sub account, go into the relevant funnel and publish every single step in the funnel. This causes an agency anting to make a universal change to spend 40-50x as much time making that change.
Making the ability to publish funnels from the folder page would help reduce the time cost. Making a way to auto publish a funnel from a snapshot view would also help reduce the time cost.