Thank you sir! This is exactly a point I was going to address in a thread of my own.

Why when I have a group of 4 heroes coming up to some dialog. Only I ever speak? Its mind blowing nonsense. Conversations should be excitingly dynamic on who you bring in on to talk.

Your party comp should be able to address things as a group, or when one specific character has something to interject with. It should be a prompt that (insert name) "looks like he has something to say) or (insert name) "is beginning to lose his temper" or (insert name) "before you know it, (insert name) has drawn his blade"