What were the two ironies behind the victory of West Indies against England?

west Indies won its first Test Series against England in 1950. It was celebrated as a national achievement.
The two ironies were as follows:
(i) The West Indies team that won was captained by a White player. The first time a Black player led the West Indies test team was in 1960, when Frank Worrell became the captain.
(ii) The West Indies cricket team represented not one nation but several dominions that later became independent countries. The pan-west Indian team that represents the Caribbean region in international test cricket is the only exception to a series of unsuccessful efforts to bring about West Indian unification.