He was joking of course, but his words are only a slight exaggeration of his views. In his ideal world employees would just shut up and do what they are told!
But do you really know this? We only know what he blurts out on the TV, in real life, we don't know what his real thoughts are.
I for one, saw the humour in his blurts, but took even more joy by watching Dom Joly (after retweeting it). Honestly if you tweet, follow Dom Joly, it's hilarious.