I get it from time to time on Saurfang. Yesterday it was so bad I was unable to Make Loh Go. The quest kept spamming the fail chat at me over and over. It was quite irritating.
I did get it in the end, but it took a lot longer than it would have otherwise. Latency to the server is fine, so it is definitely a server side issue.
Don't get it in instance servers.
Would also like it fixed so that we transition back to a local shard once the instance/group is done.