Why has the coat of arms disappeared from Migration Agent Registration Certificates?

Consumer Protection?
There have been some subtle changes to the registration certificates for migration agents and the evidence of that registration as shown as shown in the registration certificates below.
A registered migration agent is obliged to have in their office, prominently displayed, evidence of the fact of their registration as a migration agent and a copy of the Code of Conduct.
Presumably this is to avoid a situation where an unsuspecting member of the public would attend the offices of a person giving immigration assistance but is not in fact registered. Thus, the certificate which evidences the registration would then act to allay the concerns that the member of the public may have about dealing with an unregistered person.
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