That's my point. CE would stick to Tara just the same. Those aren't traits of a Puppet. Those are traits of two very close long-term Allies, you just can't stick anything in between them. Both Realms know each other's worth to the other. Something like, say, the Diocese of Aix on East Continent, THAT was a puppet.
Sure, but there are other realms in that bloc that fit that bill.