The exile government adopted a pragmatically innovative strategy. This facilitated infiltration and exfiltration. Probably not, at least in the short-term, to judge by historical evidence. Guerrilla war is the instrument of the militarily weak against stronger conventional forces. This action sustained civilian morale in occupied Europe.
Guerrillas invariably lose in pitched battles against regulars.
Special forces operating as guerrillas at different scale levels in WW II produced mixed results with little effect on the conflict's final outcome. Thus Gen. MAG Osmany's ops plan of September 1971 to send the EBR battalions in small commando groups inside Bangladesh would not have helped much. Cuba excepted, guerrillas are most effective in support of regulars when victory is certain or probable. The former made national integration impractical, two economies inevitable and military logistics impossible. The latter gave legitimacy to Bengali aspirations.