Now that doesn't mean that I know every person who does good work on behalf of PostgreSQL, but it does mean that I expect to recognize the names of most people who have been involved in the project to a significant degree. And the only one of those names I recognize is yours.
I tried a quick Google search of each name with "site:postgresql.org" and the only one of those names that gets any hits is, again, yours. That means that, as far as Google knows, not a single one of those people has posted even a single message to any PostgreSQL mailing list ever. Needless to say, that's not close to true for any current member of the PostgreSQL core team, or a vast number of people who are not on the core team but who are involved in the project to greater or lesser extents.
It is true that the PostgreSQL community is distributed, and not everything happens or is required to happen on postgresql.org. But I think it is nevertheless extremely difficult to argue that a group of people who have never posted there even once are a more legitimate group to be in charge of PostgreSQL's trademarks than the PostgreSQL core team.