I can understand the frustration from BG1 & BG2 players, but I have to play devil's advocate here and say that as someone who's never played those, I'm genuinely sad that so much of act 3 has already been devoted to a returning cast over the origin companions and would be very disappointed if they added even more content for the returning cast over their own origin companions that we played with for over half of the game already.

If it were up to me, they'd never have been added. The game really didn't need to pull at nostalgia to be popular and instead it hurts fans of both scenarios, those who like the returning cast feeling they didn't get enough of a spotlight or simply the wrong type of content, and those who like the origin companions feeling like too much was already devoted to the returning cast.