I did read it, and I do think she regrets putting Ron and Hermione together, her justification for it is basically "I did it because I wanted to at the time even if it didn't make sense" and yes I'm paraphrasing but that's how I took her words. In my opinion she wouldn't say the decision lacks credibility unless she had her own doubts. My point though is less about the quote and more about all the new Harry Potter writing she's done since saying she was finished with the series. A chapter from a nonexistent marauders book, her comments in interviews, and the tidbits and stories from Pottermore all add up. Her additions have ranged from unnecessary details to nearly retconning certain parts of the story that were or weren't in the books. I just think she needs to step away and focus on new work. At least step away from the characters she's already gone into at great length. Her writing for Fantastic Beasts is, in my opinion, far enough removed that it could be good without ruining anything. It's a different set of characters, different time period, different country. I know I'm being nitpicky but it's just how I feel.
