You need to man up if you thought this was anywhere near as emotional as say, the death of Jiraiya or Naruto's parents.
Sad isn't the only emotion my friend. Death of Jiraya or Naruto's parent's made me sad. and don't forget Pain was the one who killed Jiraiya.
What I am saying about these 3 minutes is you feel more than one emotion.
It starts out with fear when Pain goes up into the air and everyone is like "oh shit" and you know he's about to do something ridiculously destructive.
Then you see what happens and you are in utter disbelief and feeling extreme anger.
Then Sakura yells out to Naruto and you feel her sense of helplessness, like everyone and everything in her world is destroyed and there is almost no hope left in her voice.
Then Naruto pops up with all his sage power blazing and all his toad buddies with him and they are playing the jiraiya introduction music, and he's all mad confident and using the same toad sage power as his master who has been killed by the foe he now faces, and you feel like OH **** NARUTO BOUT TO LAY A SMACKIN AN SAVE THE WORLD!
come on man how can you compare all that to just feeling sad.