Mr Said has described "Orientalism" to mean Western and now American dipiction and understanding of the Middle East and the Arab Muslim world. His focus is Islam Vs the West.
The word "Orientalism" covers much largers canvass to include western dipiction amd understanding of India, Hinduism, Far East, Budhism and China.
The central theme that it is coloured vision of Colonialism is absolutely correct and tainable. It is an extension of Imperialism's ideas of " Poor Man's Burdon" or "White Man's Burdon".
"The Poor Man's Burden": Labor Lampoons Kipling
The same idea is well dipicted in "A Passage to India" (1924) a novel by English author E. M. Forster.
Indology distorted Indian history, literature and Indian systems many a times to justfy English rule or rather to perpetuate the same including the permanent division they created between the Hindus and the Muslims in the subcontinent. Like Indian system of Thuggery was very well publicised to annex Central India to British Raj as an act of Whitemans burdon.
But Mr Said views are tunneled and confined to Islam.