I have just found time to watch it. Bravo, Sir John!
To me it is very significant that Major spent seven years as PM actually dealing with the EU and knows just what he is talking about. Whereas Johnson's only previous involvement with the EU was as a reporter. During which time he made up stories about the EU; presumably for a bit of amusement.
Sir John didn't actually say that Johnson is talking off the top of his head (or out of another, lower, portion of his anatomy) but you could feel those unsaid words floating in the ether
I wonder how many tory MPs will take courage from his rallying call; "Country before Party"?
Is there such a thing as delicious ready meals?