Your guess is as good as mine. Especially with the cruise ship still docked right next to the (supposed) explosive site.
But you're totally right. This package was heavy if I recall correctly (correct me if I'm wrong, folks, as I'm at work right now and can't flip through the earlier posts) so that means a good amount of C4.
You're right. From what I've seen and read it just doesn't make sense. Then again, I'm not a member of the bomb squad. (lol)
I posted this comment after the one you read. "If what I just heard is correct, the explosion was only to open up the packaging. Once that is done, the cameras on the robot can get a better look at what is inside that package."
So now we're waiting to hear what was INSIDE that package now that they have opened it up through detonation. They may have used water to do that.