I believe it’s not a good idea to vote on which groups should appear on the UI. And I would prefer if all groups are listed.
I don’t think the current front-end is the property of the DAO, and I believe it is out of the DAO scope.
The current front-end is being maintained by Kleros, I believe that any person or entity that chooses to host a front-end should have the freedom to choose which groups they point to.
I would love to see a HIP that proposes the hosting of a new front-end, owned and maintained by people appointed by the DAO. I believe it would be an important step to the POH DAO sovereignty.
That said, the group mentioned didn’t have any admin or moderator that was voted by the DAO, did not follow HIP-16, so I see no reason to prefer it over the other group.