1- The Astronaut isnt experiencing the same Warp effect that you get when using a ship while using jump systems.
2- The Astronaut also spawns at the target outside of the boxed frame of the receiving Warpgate. Thats a bit immersion breaking.
3- Maybe the Astronaut could spawn just a block away from the Warp gate center and it plane, with the standard spawn mechanics for exiting a core ? ( -> Stargate feeling)