Funny thing with that is Aquaman and WW also took backseats to Hal, Barry, Clark & Bruce in the merchandise.
Even more hilarious is that Diana would go on to have the first universally well received movie in the DCEU and Arthur would go on to be the highest grossing hero.
T'Challa
A.K.A. The Black Panther
King of Wakanda
King of the Dead and The Champion of Bast
Two-Time Time Magazine "Person Of The Year"
Six-Time People Magazine "Sexiest Man Alive"