I think Transwarp beaming is on ice with the augments. But they didn't need to use it at all. They could have said prime Spock erased the equation after they beamed aboard Enterprise in ST09. And Scotty forgot it. Or how about never mention it again.
It would have been just as easy for them to have Harrison to beam to the moon or something and hop on a ship. I really wish they had done that instead.
Especially since it seems to only take the Enterprise a couple of minutes to get from Earth to QonoS (Voyager could have been home in a weekend!).