It looks like you are confusing "Immersion" with "Realism".
You can get perfectly immersed in a game without it having much realism.
Took me a while to realise the distinction myself.
Take this simple game here :
http://jhollands.co.uk/spaceplan/
It's a click game. But I got seriously immersed in it, despite the potatoes.
Warning: do NOT start playing it!
Anyway the point is, you can become completely immersed in a game, even though it might not have the realism you desire. In ED's case, there are a lot of things in it which are pseudo-realistic but for reasons, aren't completely realistic. Examples :
- ships have thrusters, and fly in space, but the flight model is such that you are mysteriously limited in your speed relative to *something*. RESULT: different ships have different flying characteristics, you can't just indefinitely accelerate away from something. IMMERSION : you can still get engrossed in just flying one of the ships. REALISM: no one sane would design ships to fly like this.
- ED's Galaxy : It's a pretty excellent simulation of what science thought the galaxy looked like a few years back. 400 billion star systems! Looks awesome. The systems generated also look really good. RESULT : "Wow! Look at that!". IMMERSION: "Whoa! It feels like I am actually traversing the galaxy!" REALISM : About as accurate as anyone can make it, but with limitations.
- Frame Shift Drive : A MacGuffin device used solely because this is a multi-player game happening in real time and any other solution would simply not have worked. IMMERSION : "Feels like you are driving around a star system's stars and planets". REALISM : There are theories (Alcubierre Drive) but we don't possess the technology yet.
And so on.
And so we come to being instantly inside the cockpit or bridge of another player's ship. This is a multi-player game happening in real time. Games are supposed to be fun. Some people have less time to play the game than others. Some people simply don't want to wait or have to jump through hoops in order to want to be in the cockpit/bridge of another player's ship. The only logical step is to have instant presence in such. REALISM: not at all. IMMERSION : more than likely to be quite high, once you all get going on some mission or such, and the pew-pew or exploration or what have you has begun.