The game does /seem/ to lack some traditional BG style good companions atm. In a couple of ways:
1) there is nowhere near enough party interaction, BG2 did party interaction very well so seeing more of that would be ideal.
2) literally, no "good" companions in the sense of alignment, lots of neutrals and at least one evil, possibly two depending on point of view for them. Complex isn't a bad thing, but "proper" good characters are painfully under represented in the game right now. Which is odd as most pnp groups I've played with have tended toward "good" on some level. It needs someone like Minsc, good and nothing but good. Or Aerie's innocent good or Imoens peppy good, i'd even go for a Kivan style Good but on a vengeance path good companion honestly. Maybe a Paladin of Devotion, dedicated to an unsual "good" deity would be a good addition.
Personally right now, none of the companions really do it for me, it's not that they're necessarily bad characters, but a "good" main character arguably wouldn't want to travel with most of them other than the fact the game literally isn't setup to allow you to not travel with them. Gail is a solid maybe, although personality wise he comes across a bit like Edwin, arrogant and egotistical, which is irksome if you're playing a PC who does indeed have skills that should mean he can talk on a similar intellectual level.
I also really don't like the whole origin characters as companions thing either, I'm not a huge fan of it in D:OS2 either, make them interesting companions, don't make them premade PCs that get more effort put into them than the custom made PC. Because in D:OS2, they're all pretty horrible too and it's irksome how little love the game gives a custom main character by comparison, so I really hope we don't get the same here..