There has been a bit of a backlash I think, but it doesn't really matter now.
I saw the interview with Taylor and I just got a whiff of gaslighting. They can't stand each other, apparently, the relationship went downhill after the Euros and it's from that time that her supposed "deterioration" dates. I must admit I hadn't appreciated how little she was playing.
So I am now inclining towards Kelly's side - if City genuinely thought she wasn't good enough to start (ever!), or had a bad attitude, why wouldn't they let her go to United. Seems odd to say they don't want to strengthen a rival. City are stacked in attacking areas. If she isn't part of your plans, keeping her on the bench and giving her "garbage minutes" here and there is punitive behaviour.
Anyway, hopefully it's all over now and everybody has got what they want!