Hi @Rahul_Easwar,
I have just read through this and would like to see if there is an update. I too have the same frustrations of fileters or parameters not being retained when setting up a schedule - for the very similar reasons mentioned in this post.
Having to set users up with their own preferences (via RLS) introduces a lot of dashboard owner / developer overhead for some user customisation on a report. If have have 10 dashboards and 20 users, acress a few datasets, you can see how this is problematic to manage.
Thanks
Q