not totally true premiership was the basic component with strong federation type rule, rather than a strong centralised one, ( Canada with Quebec & the French domination is a case in point ) & Canada is united even today after more than a century , it is the premiership which would do the hard work required of strengthening the system as well as cementing Minority domination , just like Wilfrid Laurier ,Pierre Elliot Trudeau , Jean Chrétien & Paul Martin did in Canada ,they were all French in a majority English speaking country , the cabinet mission plan was a replicate of this in India & Not a recite for French independence it never was !
the words you are missing is Domination & Not Independence , just think logically after all KPK was out & out congress & Punjab was unionist again a congress ally ,Baluchistan was princely state
only Sindh had a majority of 40-60 for Muslim league , the base & strongpoints of the Muslim League was UP/CP & Bengal , now sir you do the maths