Maybe the dev team should speak to Training Peaks, or similar training software vendors, so that turbo workouts from TP et al can be auto-imported and auto-generated within Zwift and once completed synced back to TP et al.
What percentage of users are likely to pay for both TP and Zwift?
The custom workouts are stored as text file (with a .ZWO extension) on your PC. You can therefore create and edit them very quickly using any text editor. Although I don’t use TP, it took me a very small amount of time to create all my favorite work outs in the Zwift format. I therefore think there are far more important things for Zwift to focus their efforts on.
Auto import to TrainingPeaks would be very Nice