Sultan,
According to this:
Sikorsky S-97 RAIDER? Aircraft Overview
They have a clutched propeller. That would imply that FOD should not be an issue.
Did the pusher actually kill the Starship? Will it kill the Piaggio Avanti too? My recollection is not the best but I thought it just was not that competitive with the old iron, the king air, especially when price was considered and the relatively small difference in performance.
Bryan