You want your idea to be talked about, right?
For this to happen, it needs to be remembered.
Now think about movies you remember easily. You’ll find they have a plot that fits into the basic story structure of Character + Inciting Incident + Goal + Obstacle(s).
If you have a sound concept, and your logline is well-written, it will be remembered, and people talk about it more easily.
Just like after seeing a great movie.