Lol, are you sure you are talking about the same Musharraf I know? The Musharraf I know bowed down to the West, and is partly yet grossly responsible for what is going on in Pakistan today.
Pakistanis React To 'Stone Age' Claim - CBS News
He should not have been such a coward and fallen to the pressure. Even today, the U.S. would "think 10 times" (as Kayani said) before it would launch an attack on Pakistan. And compared to 10 or 11 years ago, right around when Musharraf may possibly have received the threat, Pakistan was much..much more powerful than today, and the U.S. would probably have had to "think 50 times" before it decided to make a stupid decision. Musharraf is just a coward that left the country after making his money and having no options left.