As TV Guide pointed out:
In the storyline, parents Amy and Bob Duncan (Leigh-Allyn Baker and Eric Allan Kramer) set up a playdate for preschooler Charlie (Mia Talerico) and one of her new friends. When the kid arrives, the Duncans learn that Charlie's pal has two moms. That's fine, but the potential new friendship is put to the test as one mom chats with Amy, and the other is stuck listening to Bob's dull stories.
A Disney Channel spokesperson told the publication that the episode was "developed to be relevant to kids and families around the world and to reflect themes of diversity and inclusiveness."
News of the planned storyline broke last year. Among those to offer her support was none other than Miley Cyrus herself.
Meanwhile, right-wing group One Million Moms (who are best known for a failed boycott against JCPenney after the retail giant hired Ellen DeGeneres as its spokesperson) condemned the episode.
"Conservative families need to urge Disney to avoid controversial topics that children are far too young to comprehend," organizers wrote at the time, according to Lez Get Real. "This is the last place a parent would expect their children to be confronted with topics that are too difficult for them to understand. Mature issues of this nature are being introduced too early and too soon, and it is extremely unnecessary."