Or maybe they have learnt that investors due-diligence is about the hard facts and not sentiment?
Not everyone is a good story-teller either so to avoid the confounding charm factor, just be as boring and straight to the point as possible?
Which should also keep every startup of their batches on equal footing and hopefully mitigate the hype factor?
Not defending them, just me brainstorming about what could be plausible explanations for this.