:::Sorry, Blnguyen, I didn't realize you had responded.  You are right that the word "Pakistan" was indeed coined in the 1930s, but SAK was the first person to actively promote the idea that Muslims and Hindus in British India were distinct nations and that the Muslims should cast their lot with the British rather than with the then fledgling (and later burgeoning) nationalist movement of the Indian National Congress.  He is therefore considered important in the history of Pakistan.  Anyway, thanks for responding.    
 ::::PS. Thinking you hadn't replied, I left an uncharitable note in the ANI discussion here, which I have since retracted.  My apologies if I caused offense.