There's a social media engagement tactic where people will deliberately add specially tailored elements to content in order to bait people into commenting about it. I wonder if there was some deeper strategy to this chart being used during their presentation or if it really was just a blunder.

Maybe the fact that there were additional blunders, such as the incorrect explanation of the Bernoulli Effect, suggests that the team responsible for organizing this presentation didn't review every detail carefully. Maybe I'm reading too much into a simple mistake.