Do I need to indicate right on the first of these mini roundabouts?

I had a lesson with an instructor the other day taking the route of the blue line, and he said I shouldn't indicate right on the first mini roundabout as it would be misleading to people on the second roundabout, and to just indicate left when I get to that.

Is this correct? I can see why it might be unnecessary to indicate right as its a right only lane and you're overall going straight but I don't really see why it would be misleading. Just don't want to do the wrong thing in my test. Thanks.