Reg. the "technical" question: Kafka or any log-based message broker (or any message queue) would not prevent you from that. Any service can publish/send and/or subscribe/receive.
Regarding if it's a problem or a regular occurrence: No, really not. I have never seen this being a problem, I think that fear is unfounded.
Regarding if it's a problem or a regular occurrence: No, really not. I have never seen this being a problem, I think that fear is unfounded.