Sad someone out there will assume this is for real and plan to change their interviewing to this. I've been in interviews where you had to talk with every single person on the team (8, half of which didn't show); a gang interview with me in the middle for several hours; 4 separate interviews with multiple people who all asked complicated puzzle questions; and a place where every team member talked about how they did…
There’s a form of dysfunction if a team can’t trust a subset of the team to make a decision on a new team member. Likely it’s an attempt to avoid all possible blame.
Bit overkill if you ask me