I immediately thought: they tell this to everyone, this is some sort of deceptive tactic, and I cannot trust them.
I never followed-up because I wanted nothing else to do with people who were patronizing and lying to me.
All-in-all, this doesn't seem to do the clients justice if they don't throughly test to see what prospective candidates are made of by pushing their real-world problem-solving abilities, intuition, knowledge, and expertise.
My conclusion is to dissuade the use of TB as a candidate or as a hiring manager.
The online quiz itself wasn't difficult if you knew what you were doing, but it seemed well designed to discern clueful candidates from those who needed to brush up. I know people who took it and didn't pass.