Yes and No, even if Gothel and Rapunzel saw/interacted with Marluxia ONCE none of them ever bring up Marluxia's name nor mention his name again for the remainder of the world after their encounter with him. At least with Monstropolis, Toy Box and San Fransokyo the inhabitants of the world (not just the ones that Join Sora's party) do acknowledged the member of Organization XIII and see them as a threat instead of just brushing it off and never bringing up the individual's name again like it was nothing, particularly the former when Randall had a "teamup" with Vanitas to collect negative emotions for the Unversed and Vanitas and when Mike Wazowski got furious at Vanitas for being the one responsible for bringing back Randall and having the Unversed causing chaos in Monster's Inc.At least Marluxia interacted with Mother Gothel and Rapunzel; he also fit the world thematically.