Yeah it's a reach.
She told them how they respond when they really don't fukk with an idea, by not asking followup questions, by not poking holes in his idea, by not doing followups.
He talked to them again, they did exactly what she said and he realized she was right.
It was someone that had been there a couple months being told how shyt operates from someone that had been there, I think she said 5-6 years.
IIRC, she didn't even tell him his idea wasn't viable, just that she knows how their bosses act when they don't believe an idea is viable.