Realtime recording of synth output is now possible. No need to bounce down or freeze. That thread was from a time before this was possible.
The most basic way is just insert a new audio track, and using the audio track input dropdown, select the output from AD2 that you want to record. Arm the track for recording and start recording.
There are also some more routing options you could use for buses with the new patch points and aux buses if you want to get fancy.