Lol. I'm not happy about 4, but think about it. How many RPGs truly have a 6 member party? The Final Fantasy games? Neverwinter games? Solasta? Knights of the Old Republic? I mean, other than BG1 and 2 and Icewindale, what other 6 party RPGs are there?
So yeah, Id like 6, but Im okay with 4 if there is a decent reason for it and especially of they explain it well in the story.