What I meant to say is this. If you say "I'll give you fewer companions than BG2 but each will have more depth and character development than the BG2 companions have", you are comparing your product to BG2 (twice). You're setting BG2 as reference point for content. And my reaction to this is : sure, but that's not very relevant, since you don't have the same budget as BG2. (In Larian's defence, they may have been prompted by an interviewer or show host who asked about the number of companions, relative to BG2. It may not have been Larian's idea to compare number and depth of companions in BG3 with those of BG2.)
Ah, got you. I confess I’d simply assumed that Larian’s mention of the number of BG2 companions was prompted by a question, though I guess as BG3’s predecessor it’s a natural comparison, however different the production values. Not that I want to diss BG2’s values: I was dead impressed when I played it when it first came out, but as you say technology and engines have progressed significantly in the last 20 years, along with expectations of companion design.