The main benefit of repeating groups is to do the same thing to all the items in a list with a single automation run and no helper fields. For example, you can use a repeating group to to individually process each record found in a "Find records" action. Prior to repeating actions, each record processed typically used on automation run (unless you used scripting), even if there was only one defined automation.
How are you using repeating groups with your "Find records"?
You can do multiple "Find records" actions in the same automation, and then put the result of all those actions in a single email. Your resulting email might look a little strange for tables with no found records, but should be good enough for internal usage.
