Most of our Kubernetes-based services communicate with Kafka. Istio adds basically no value into Kafka-based clusters as it doesn't offer a full abstraction ov

Most of our Kubernetes-based services communicate with Kafka. Istio adds basically no value into Kafka-based clusters as it doesn't offer a full abstraction over Kafka (and basically can't as clients as broker-aware etc.). KNative was basically DOA for us because it required Istio. It's not so much that KNative was marketed wrong so much as being too opinionated about the "cluster-admin"-level components. If they were part of your stack already, cool, it was easy to get going. If they weren't, then trying to adopt KNative was like trying to force a square peg into a round hole.