Well, if I was her, and I really hadn't been 'throwing shade' at JKR, I probably would have used my significant public platform to clarify that, given it's been widely reported on SM that EW was doing exactly that.
I mean, if I was any kind of reasonable, thinking human being I'd be utterly mortified that my comments had been misinterpreted as slagging off the woman who made me.
It's a complete mystery as to why she's not done so...