I replied on the blog post. The downside is basically that if you have one giant consensus group, then to add a new replica you have to replicate that entire co

I replied on the blog post. The downside is basically that if you have one giant consensus group, then to add a new replica you have to replicate that entire consensus group. This hurts load balancing and recovery times, since you can't scatter a dead node's ranges across all the other nodes in the cluster.