No doubt, a strong Federal Centre is meant to counter the fissiparous trends and separatist tendencies, but it is also correct to say that a strong Centre does not necessarily mean a strong nation. The strong Central government in the past have been responsible for a weaker rather a vulnerable Pakistan.
S.N.F (Sindh National Front) want genuine Provincial Autonomy. The autonomy which is being enjoyed by the States in the US & Canada, the Indian Provinces, the Cantons in Switzerland and the Australian Provences etc.
The Provincial Autonomy as provided with the Act of 1935 was meant for colonial India and not for free and independent Pakistan. But after that in 1940 (Lahore resolution) was the main theme of Independent Pakistan. The 'resolution' is totally in the favour of CONFEDERATION