Having messed up messages is more problematic when the subject matter at hand is family/kids shows since kids will actually take the messages to heart many times. While messed up messages in adult programming is still bad because it's meant to be taken more seriously and should have more complex stories and messages, I don't think it's as much of an issue there because adults typically don't carry as many messages from shows as kids do, and they can usually use their own logic to identify when a message is bad and why it is bad.

Many of these examples are from kids/family shows so I think they're reasonable arguments to be made.