Good point. However some ships don't have wings! e.g the Lakon Type 6 Transporter <-- it's literally a flying brick! Will those be able to fly/land in planetary atmosphere without wings? Will their thrusters be sufficient/powerful enough to stabilize them?? (I'm just wondering from a scientific point of view)
Shape is irrelevant in space, you could be a cube, triangle, ball, cylinder ect.. It only comes into play in an atmosphere. But even then, with anti-grav thrusters or just thrusters in general you can still land and fly around, just maybe a bit more clumsy.
Actually shape in this game matters a fair bit in combat. A brick shaped target it an easy target, but if you have a ship that is fairly flat and wide it can be much harder to hit if it is coming towards you or running away.
Aerodynamically wings don't serve a purpose in space but they are very good for thruster mounts. The further away from the center of a ship you mount the thrusters, the more effective they become at making the ship roll and yaw. Not to mention they make nice weapon mounts and look cool (which ofc is the most important thing).
Here's the underside view of the Space Shuttle. It's a falling brick with some heat shielding and a few control surfaces, just the minimum needed for aerodynamic braking through an atmosphere:
ED ships don't have control surfaces like ailerons or rudders, so we can assume pitch/roll/yaw control uses thrusters during an atmosphere insertion. Something much stronger than the little hydrazine jets on the Shuttle.
I don't think any of the ED ships look like they couldn't do a planet landing, assuming enough heat shielding and thruster control. If we can scoop fuel in the corona of a star, we should be able to handle high speed aerobraking into an planet's atmosphere without breaking a sweat.