In the SFDC and probably other connectors, it seems that the data blocking default is 'allow all' but I believe it should be 'allow columns' (ie: only augment existing objects with new columns if they are introduced).  Making the default, 'Allow all' may lead to unexpected increases in MAR consumption and replication of objects the customer has no interest in.

I am referring to this section of your online documentation:  https://fivetran.com/docs/using-fivetran/features/data-blocking-column-hashing/config#configuredatablockingandcolumnhashing

Thanks