The writers aren’t content to just redeem the villains; they have to vilify the heroes. That includes making Baelfire, the guy who spent his entire life paying the price for his father’s dark magic in the form of abandonment, say “To **** with the price” just before he paid the ultimate price. That includes defamation of the memory of Snow’s mother, Eva, who did no wrong except tell the truth, but who changed for the better and became an upright woman who challenged her daughter always to keep goodness in her heart. And now we have Snow, who despite having killed Cora in self-defense, was working towards lightening her heart, go and murder her own husband at his request. Next thing you know you’ll have Belle doing something truly dark to free Rumple, but doing so in a deeply disturbing way. Emma already had a hand in severing Neal’s life support, but she probably will have a very dark moment with her magic. We’ve already seen her being a bit too gleeful about using magic, aka power, which was Regina’s problem with magic.
"That’s how you know you’ve really got a home. When you leave it, there’s this feeling that you can’t shake. You just miss it." Neal Cassidy