This is just as Hera dubs them the bastard children so Apollo, Artemis, Athena, Hermes,Heron and Hephaestus. They have all accepted Heron and are welcoming and kind to him, Zeus also included

you are Dionysus

the introduction to Heron has just occurred

Zeus: now my sons and daughters be nice as his mother died less than a few days ago

Heron looks sad and slightly uncomfortable and upset