Answer:
It can provide an easy means of creating places for the audience to focus other than the speaker.
Step-by-step explanation:
A presentation aid for example a projector that projects the slides or a laptop helps the presenter to give the presentation effectively. As explained in the question, it helps in increasing the amount of information recall. It can increase the amount of time people remember the information and it can help to simplify and explain complex messages.
It certainly does not help in creating places for the audience to focus other than the speaker. This would rather take off the focus of the listeners from the content being imparted.