Analytical thinkers have already made their own conclusion
Most of us are taught that the introduction is where you win everyone in the room. Start with a story, something personal, maybe a bit of humour. It's still what most communication training teaches. But it isn't true for a quarter of the people listening.
I spent years reading that as disinterest, and adjusting my introductions to be warmer, which made it worse. For Analytical thinkers, engagement begins with the evidence.
Analytical thinkers rarely need your conclusion either, because they've been building their own while you were talking. They read ahead, they weigh what you've shown them and arrive before you do.
The only reason they'll often listen to your conclusion is to compare it with theirs - and it's not to check whether they're right. It's to check whether you are.
Gregor