Assalam O Alaikum,
The manner in which he delivered his dua on 27th Ramzan should be between him and Allah(He who knows what is hidden in the depth of ones heart). So we instead of passing our precious opinions and judgements on his attude should rather try pray to Allah for forgiveness and prosperity.

Her koi apnee kaber ka khud zimedar hai and Religious minister is no exception to this fact.

Allah Hafiz,
NCH