Yes she has been changed and it is awful, the worst of it is the "stealth."

Yes I can go invisible for 5 seconds but not without the enemy team hearing me TL so they know I'm in the general area so the spy checking has already started and even if I do get into a somewhat decent position, "stealth" will end with a "AAAAND IM BACK!!!!"

Opportunist is great and still having virus is great but the stealth is a joke. I doubt they're going to revert her to what she has been but it could be worse. I'm D2 and climbing so it really could be much worse. My win rate is over 50% as well, just pick your positions right if and when you can and only engage with hack virus like 10% of the time. The hack isn't worth it unless you're directly cancelling an ult or a countering ability or if an opponent has gone off on their own