Address PR feedback

pipeline/directed.go

@@ -98,17 +98,18 @@ func (p *DirectedPipeline) Render() ([]byte, error) {
 // Operators returns a slice of operators that make up the pipeline graph
 func (p *DirectedPipeline) Operators() []operator.Operator {
 	operators := make([]operator.Operator, 0)
-	// If possible, return the list sorted. If for some strange reason
-	// an Unorderable error is returned, use the list without guaranteed order
 	if nodes, err := topo.Sort(p.Graph); err == nil {
 		for _, node := range nodes {
 			operators = append(operators, node.(OperatorNode).Operator())
 		}
-	} else {
-		nodes := p.Graph.Nodes()
-		for nodes.Next() {
-			operators = append(operators, nodes.Node().(OperatorNode).Operator())
-		}
+		return operators
+	}
+
+	// If for some unexpected reason an Unorderable error is returned,
+	// when using topo.Sort, return the list without ordering
+	nodes := p.Graph.Nodes()
+	for nodes.Next() {
+		operators = append(operators, nodes.Node().(OperatorNode).Operator())
 	}
 	return operators
 }