I'm really unsure if I've gotten better at the game since the derank update or what, but on my main account I was MG1 prior to the update (I don't play much on it any more tho), and on my second account (which I don't play anywhere near as seriously) I'm currently Gold Nova Master which is just one rank away from MG1.
I would however say that the average skill of a gold nova master player that I've came across seems to be a lot better than what it was prior to the update. They all tend to have mics, know callouts, and generally seem to know what they're doing.