If it were my game, y'all would have to actually travel to your friend's ship, and if it were too inconvenient for you to travel that distance to meet up, then boo hoo for you. If it's really that important or exciting, you'd be willing to put in the time (the same concept as the popular book He's Just Not That Into You...if you can't be bothered to travel for multicrew, then you're just not that into Multicrew)
But since it's not my game, and it needs to sell more than 10 copies, and I do have to put up with the rest of you

, I'll agree with the camp that says no lore should have been offered to explain Multicrew. Just let it happen without a lame lore-breaking telepresence explanation and we can easily pretend that the game merely skipped over the game time required to meet up. We can easily imagine we simply didn't witness that part of the action. Just let the screen go black, and when the cockpit reappears there's your co-pilot walking through the door behind you, and you can imagine for yourself how much time passed while the screen was black. Was it a few hours? A few days? Weeks? Who cares!
When our ship destructs we don't get to see our Remlock suits go into action, the screen simply goes black. When we change ships we don't get to see ourselves travel from one hangar to the next, the screen simply goes black. Obviously things transpired during the time our screens go black in those instances, but we instinctively understand that those moments were skipped over in order to keep the gameplay tight. Personally, I DO want to see what my Remlock suit does after my ship destructs, I DO want to see myself travel from one hangar to the next, but I understand I'm a freak about that stuff and so I don't complain. I'm assuming these kinds of wishes are why space legs are being talked about, but none of it was a condition for me buying and enjoying the game so they can take their time with that IMO.
But asking me to believe that our friend's HOLOGRAM is required for them to help control aspects of the ship when they could simply sit at remote controls and remote in via 3303's version of Skype, is approaching bridge-too-far territory. Either a co-pilot needs to physically be in our ship, or they don't. If they do, a hologram won't cut the mustard, and if they don't, a hologram is useless. There are plenty of reasons why a captain would appreciate some help on the bridge from extra crew members, but there's just no reason whatsoever why a captain would need to see a hologram of a crew member who is helping remotely. When a Tesla is on autopilot, is it necessary or helpful to put a hologram of hands on the steering wheel? I agree it will be really cool to look over and see a co-pilot in one of those empty chairs, but if it's not an actual tangible human pilot then there's simply no point. A hologram of a co-pilot offers no advantages over a co-pilot who is merely controlling systems on the ship remotely without any visual representation, the same way there's no advantages to have a hologram driver in your Tesla when it's on autopilot.