It would be preferred but not required - as a developer you can also configure the views. That was my screenshots shown earlier.
It is more work for you sure, but the requirement can be achieved.
Design Time
Run time
Expanding on @RameshSangili’s solution maybe you need to look at Dashboards and Promoted Filters? In this way you could build one filter (case type) that would apply to all the Insights in the dashboard. Rather than trying to build every permutation, that might be a middle ground (with the added bonus of allowing people to modify their dashboard to suit their needs AND/OR personalizing them, to once again suit their needs).
Here’s a video from our webinar last week 
Webinar Replay: Achieving outcomes in Constellation: Solution Designing and Building for Success