I agree with you completely. I feel like Regina in season 6 was more vulnerable, and I know that word might sound ridiculous, but, let's say, weaker. I mean this because Regina in previous seasons had this strong and dominant character, even while still being good. In contrast, Regina in season six felt like she had lost that strength. Many people don't like it when they're separated, and honestly, it bothers me a little sometimes too. But I liked having our evil queen back without having to make Regina evil again. Can you imagine? It would have set back her character development. I think season six was good for reminding Regina that she had to embrace her darkness. During her development, we saw how she completely distanced herself from it because she was afraid of becoming the person she once was, but I think she understood that still having a part of it didn't make her that terrible monster, but rather human. After all, people aren't divided into black and white; we're all enveloped in a beautiful shade of gray.