It is claimed that the chickens wake up after stunning, hence they are alive when slaughtered.

Answer

Do not be fooled by these agents of Iblees. If this 'moulana' had any seniority in his brains, he would not have disgorged rubbish and drivel to justify the slaughter of Iblees. Even if the chickens 'wake up' after stunning, do not consume them after they have been subjected to this haraam treatment. The moulanas and Muslims have become completely desensitized. Haraam has become to be accepted as a valid, permissible practice. Ignore what the senior mufti says. He has lost perception of the Shariah, hence he speaks drivel.