Is Alistair Begg really that miserable even thou he's a Christian?

I love the "Wretched Network", but their showing of Alistair Begg's preaching against the dreadful modern set up in the Charasmatic Churches and their worship style was taking it from one extreme to another. <br /><br />He seemed so miserable, that he must have forgotten what Paul said in Philippians <br />4:4 Rejoice in the Lord alway: and again I say, Rejoice.