Well I can see where she's coming from about Ron being generally pretty crappy to Hermione. But I think her whole shtick that this fictional relationship is inducing entire generations of women into abusive relationships is nonsense and another stick to try and beat JKR with.
It's highly significant that JKR says the Ron/Hermione relationship is symbolic of her own state of mind at the time and we know she has been in at least one abusive relationship. She's the author and it's unsurprising her books might reflect her own inner turmoil. Especially since it's fiction and she's allowed to write what she likes.
What I find remarkable about the younger generation of HP obsessive is they seem to absolutely resent the fact that JKR wrote the books - they want ownership over the series and bash her at every opportunity.
Heaven forbid this writer ("writer") reads any Shakespeare. Surely he's depicted far more abusive relationships - Hamlet and Ophelia? Othello and Desdemona ffs?