No, they say, you can have a buddy or a companion, but not both. But they don't say, if your buddy can have a companion additional to you or not. It still sounds similar to D:OS1, if you took one-man-army the specific character could not recruit, but the other character still could.
From the in-game description:
"[...]This bonus temporarily removed while there are more than 2 members in the current party."
Still have doubts about it?
