Hm, "after the 1st act" is not the same as "at the end of the 1st act".
It may mean that sometime during Act 2 we reach a point where cannot save all the companions.
As already pointed out, the end of Act 1 does not imply companions are left behind, the druid specifically says he is coming with you, and he is in the camp.
That could be. To me, it implied you can no longer swap companions out after act 1. I think we definitely need a bit more clarity on this subject. Also, is the druid a companion, or just a follower? Cause there is a difference.
