They mean: https://en.wikipedia.org/wiki/East_Turkestan https://en.wikipedia.org/wiki/East_Turkestan and article states : "Uighur Muslims are a Turkish-speaking

They mean: https://en.wikipedia.org/wiki/East_Turkestan https://en.wikipedia.org/wiki/East_Turkestan and article states : "Uighur Muslims are a Turkish-speaking minority of eight million in the northwestern Xinjiang region". For language you are correct but from my point of view it is nitpicking, same like 10m and 8m. Important parts are, they do not speak same language as Chinese and in country of China group in up to ten millions is still minority which can be oppressed by central government. For comparison Sweden or Portugal is around 10m people, which gives me nice point of refenece.