Hi there, i'm Tim. After an IPAD has been reset to factory defaults, everything needs to be reinstalled, including games. The saved game data is gone, so you have to start at the beginning. I'm sorry for the inconvenience here, i'm not sure why the tech did not tell you that you would lose game data, there is no way around it and no way to recover the lost games.
Just so you know iTunes has a built in backup feature ( as well as icloud). If you had connected your ipad to your pc or mac before this happened then there is a backup ( it is done automatically )on your computer.
Right, that only syncs apps and music, not the data saved inside hte apps, at least as far as i know.
All data is backed up :)