He can mention fuses all he wants, all it is is analysis and informed speculation. Pakistan certainly won't be talking about its developments. At the end of the day Pakistan would not be making such a massive and rapid investment in its Plutonium production infrastructure if it was not confident in the data and designs it has.
As far as 'fissile material stock', as I said already, I don't really care if you want to claim India has '2 million warheads', it makes no difference so long as Pakistan has enough functioning warheads to pose a significant enough threat to India to ward of any unprovoked military aggression that crosses our 'red lines'. So far that appears to have worked, regardless of the fan-boy rhetoric of 'ask the Brigadier if he is afraid of nukes'.
Even Functioning warheads need working fuses to deliver nukes.Sorry AM He is a renowned Nuclear expert and his opinion is more valid when giving an impartial opinion and Laws of Physics apply even to Pakistanis