The YouTube video [1] was published in 2019. The Blog spam posts range from Nov 2022 to July 2023.
Other than the video, the only relevant content is on the about page [2]. It says the voice is a collaboration between 5 different entities, including advocacy groups, marketing firms and a music producer.
The video is the only example of the voice in use. There is no API, weights, SDK, etc.
I suspect this was a one-off marketing stunt sponsored by Copenhagen pride before the pandemic. The initial reaction was strong enough that a couple years they were still getting a small but steady flow of traffic. One of the involved marketing firms decided to monetize the asset and defaced it with blog spam.