[TheGuyWhoCodes]

It's just a different framework for a different use case. The fact that it's http 2 and support bi-directional streams is nice for low latency applications.

I doesn't make RPC over message brokers deprecated and if that works for you under you conditions that's great.

You can say the same about message brokers. Is it LIFO, FIFO or something random? what about acknowledge, is it late or not? Can the queue hold responses (Rabbit advices against using it as a result store)?

In that regard message brokers are complicated, lets just do http calls and let the load balancer take care of routing, it's much simpler and the client is very dumb.