There is a general feeling in STEM that when someone's presentation is a bit too slick looking they actually undermine their message and raise suspicions about

There is a general feeling in STEM that when someone's presentation is a bit too slick looking they actually undermine their message and raise suspicions about their motives...like people start to feel like they are hiding something. I guess the moral is just say what you need to say and don't over think it. Or maybe the moral is that it all depends on your audience.