That's very true - but as a player, you did play it from your characters perspective in the first instance. In a sense, you have to survive on your own abilities, and you are playing alongside people who are doing the same thing, they are building their own agency first. Teamwork was a challenge at times (getting a group of players to agree on anything during our campaign days was an achievement in itself). We couldn't decide whether to buy kibble or get a place to stay...
I'm not anti team member games, I like that function in and I think it's done well in ME & Dragonage. But in the hyper capitalistic world of cyberpunk, I'd be happier seeing team based play as the exception, not the norm. Having to chose what your voice acted angsty-with-sharpe-wit team mate has gear wise or what abilities they can use might distract players from getting into their own character.
I'd like to see teamwork featuring in the game in a storyline, but not as a constant part of the game. Cooperation in a world without society as necessary evil, not the normal mode of functioning. I'd rather feel the achievement/glory of defiantly overcoming the odds as a single character.
But I can really understand why that might not appeal to everyone. If multiplayer functionality works, then i'd be in favour of it. I wouldn't want to have written in characters to carry around in game during combat etc.