Asalamualikum, Verily Maulana Ali Mian (Rahmatulla alihi) is our seniormost elder and scholar. However with regards to the maslak of nadwa he himself has written a book -"Basair" in which it outlines the difference between nadwa and deoband. It tells us why nadwa was formed and in that it mentions its objective. So, we see a mixture of ideas in nadwa as it is not strict as compared to Deoband. But after all that, no criticism should be hauled towards the writer or the madaris.