By Multicrew, I mean you could hire a co-pilot. I was under the impression this release was also about multicrew, with friends and whatnot. Is that not the case?
Sounds like you are confusing two features:
In the Crew Lounge you can hire an NPC crew member who can either fly your fighter or fly your mothership whilst you fly your fighter (NPCs only, introduced in 2.2)
Multi-crew - you can remotely join another player's ship or they can join yours (human players only, introduced in 2.3)