It said independent states, it didn't say "an independent state". Just look at the name "Pakistan" which was proposed at the time: P-Punjab, A-Afghania (NWFP), K-Kashmir, S-Sindh, tan-Balochistan. Bangladesh was not supposed to be a part of Pakistan, it only joined at the end. That did not mean Bangladesh was not fighting for independence, but it was not part of Pakistan's masterplan until the end.
You are mistaken in the naming of the muslim majority country that was named Pakistan. Allama Iqbal was the originator of this word, 'PAKISTAN.' He was a dreamer and he dreamed of a Muslim country consisting of not only the muslim majority paart (s) os India. He also included other neighbouring countries. Well, it was only a dream and he first thought of Pak as pure and (i)Stan as the land. In total the meaning was the Land of Pure.
But, then he thought, P stands for Punjab, A stands for Afghanistan, K for Kashmir, I for Iran, S for Sindh, T for Turkey, A for Afghaniya of NWFP and N for baluchistaN. So, there is no Afghanistan, Iran or Turkey in Pakistan, but, Bengal was included. However, the name Pakistan was not changed. So, your claim is based on wrong information.
The name Pakistan was coined by Allma Iqbal, but it was Sher-e-Bangal A.K. Fazlul Haque, the then Chief Minister of Bengal who proposed Pakistan Resolution in Lahore in 1940. So, you are wrong in many counts about the creation of Pakistan. You just do not know that Bangali and Bihari Muslims were at the forefront of Pakistan movement, when Punjabis and other now Pakistanis were ready to live in an united India.