Not only I'm not too fond of the "commit to the initial choice" approach.
I'm even less fond of the idea that all companions will have to be introduced in the beginning AND be "playable origins". That is bound to severely limit their number and variety, not to mention the chances to surprise us later in the story with new potential allies.
Yes, this. Like you're telling me in a 80+ hour journey I meet 10+ companions in the first 15-20 hours? Is there NO ONE out there that is worth adventuring with and also wants to join us for w/e? That feels so gamey and opposite of immersive. Not to mention, are they ALL going to somehow have a tadpole? Just so they do their "Origin" playable crap? That is so far from immersive that hey, you only stay with 3 other companions, bye all! Hated it in OS2, hate it here. No idea why Larian are so adamant about some of their designs from game to game, even when its terrible.