I didn’t say that interaction between MC and party members is especially well done in BG1. It’s the BG2 which elevated this side on another level. My point was merely that I totally can see why people followed BG1 MC: even traveling with him for some limited time was obviously enough to get the idea that the dude at least is interesting to hang with (I personally don’t see a problem to switch on my imagination and imagine how say Branven hears him sleepwalking and speaking with his father while spending a night in the forest and on the next morning he is able to slow poison). Would have been silly to expect something like BG1 to provide all the context of the complex relationships existed in the party. But I really liked it this way. Broad field for imagination.
But again, if your solution for Bg1 MC's lack of any defining personality boils down to headcanon, you can do the same for Bg3 (and some people do it). When you give one game a break and not the other, it just makes you look like you have double standards.
Why don't you imagine BG3's MC is this charismatic guy that everyone love? What's stopping you?
