I would agree Larian were listening to criticism if they consigned their infuriating chained party control system down the toilet.
I am pretty sure that the chaining system is still there - difficult to say as they played in Coop.
They added group/ungroup all to main UI, which was added couple patches back as a shortcut. They also added "stealth all" button. So they are adding things to make current bad system as usable as they can, which might be not the ideal, but it's the best that we can all hope for.