Great answer@Grant the first king of Axum had a realm in Adulis and Saba was later conquered by the Axumites.
But anyway, the websiye u linked literally saysthat the Adulite king said this:
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The king clearly isn't of Sabean origin but native to the land. Mr. Kirwan's analysis doesn't sound convincing at all! his final concluion is just based on topography and nothing else even though the evidence goes directly against them. There's other reasons as to why it doesn't make sense.
To me it's just another Rossini.
The first king of aksum ruled over adulis area initially before expanding over to the rest of Ethiopia either way he was still regarded as the first aksumite Kingdom
Grants is trying to call adulis a city state but it's beyond that by then it was already a kingdom