Hi ,
I think the changes are good and I don't have any issues with them. It's always good to see ongoing improvements to the environment. I'm wondering when the activity limit of 40 will be removed (https://docs.microsoft.com/en-us/azure/azure-resource-manager/management/azure-subscription-service-limits#data-factory-limits) . If ADF is every going to be an enterprise tool to replace SSIS then this limit will have to go. For me it's important to log all activity before and after each activity. I normally have a success log and error log. This really means that every activity has 3 components. This reduces the total activates down to around 14. When you through in say a condition or a few set variables the number of true activities is very small. My pattern to get around this limitation is that almost every activity is its own pipeline.
I hope the team can understand the frustration when trying to develop large ADF's with these limitations. My current project is working with Microsoft consulting to develop a migration into Dynamics 365 and while I am using an ADF Microsoft is using SSIS because of the limits in ADF.
cheers
Greg