Replacing the Star Gods with a batch that is easier to control doesn't affect the Boundary Breakers at all, even if the replaced Star Gods were top-tier in terms of talent and strength.
But they were not obedient enough, and this alone gave them reason to be replaced.
This batch of Star Gods might join the Great World in the future, but that's a matter for later. Once they join the Great World, how the Star Gods wreak havoc is their business.
Even if they commit atrocities, there are corresponding Boundary Breakers to punish them. Over there in the Great World, they won't meddle in other affairs.
However, it's different here. If the replaced Star Gods want more within the limits of tolerance, then so be it; eventually, they will inevitably face the Proxy Agent.
They may not survive, but they mistakenly believe themselves important, thinking that without them, many things can't be accomplished. The Boundary Breakers really need the Eternal Star Gods.
