I tend to think that for human rated flights it may be possible to give it a parachute just in case powered descent is not possible for any reason as a precaution for a belly flop water landing with parachute assist. The flaps are already there too so maybe just increase their size is possible for a glidable descent? We're entering a size class for the vehicle that makes some outside the box stuff possible without sacrificing too much in terms of payload capacity.