I would like to point out to you, this decision doesn't impact you at all. Your account appears to be on lemmy.ml. the only thing this decision does is prevent users on Beehaw from interacting with content on lemmy.world and sh.itjust.works and vice-versa.
As a user of beehaw.org, I'm fine with this choice. If I discover content I want to engage with on a defederate instance I will create an account that can interact with it along with my existing account on Beehaw.