What vulnerabilities did pacquiao reveal last night?

I am sure you know that making your adjustment on the fight is not as easy as what your details said.. Every fighters have their own vulnerabilities. Nobody is invincible. Manny have his own flaws but to take advantage of that flaws is exposing your own flaws. Some said that Manny Pacquiao is not a hard puncher. I just don't understand why if Manny is not a hard puncher why Shane Mosley fought that way especially after the knock down. He shifted to survival mode and in full retreat. The only way we will understand Manny Pacquiao is when we fight him ourselves.