Knowledge in advance enables us to prepare for what is coming, and saves us from being caught off-guard. From the time we are infants, we need to know where to answer our questions. If you have a question for God or a mother, you answer your questions by talking to them very politely in advance.
The messenger's task is different from ours; it is not about making conversation, but rather delivering the message that has been entrusted to him. Take it or leave it , there is no time for conversations.
If there were a spirit or human being to whom an irrefutable message was entrusted, and if the recipient of the message allowed that person to distract him by making conversation before receiving and sending the message, such a person would be guilty of an unforgivable act.
When a messenger with a message arrives, it is not his responsibility to pass time with you and make small talk before delivering his message. Time is limited and valuable.