But because I'm bored, I'll enlighten you.
1) The bard is the only character raiding who can harm the paladin. Maybe the dwarf wants to make sure his allies have a chance?
2) The bard, since he can harm everyone defending, is actually the most viable target. Mainly because he can fuck EVERYONE up. Not just the dwarf. So it's probably good tactics to try and make sure he can't, you know, fuck everyone up.
3) As you saw, Malchazzar disarmed both of the dwarves weapons in 2 combat rounds in a fight where they were fighting directly. Odds are he doesn't want that to happen during the raid. This also comes into play re: fleeing/returning.
4) He actually only cranials the bard twice. He even tries to bash him at one point. I'm going to assume he sliced the bard assuming that it might be a long drawn-out fight, and wants to reduce his mana pool. However, these tactics go predictably bad (well, relatively).
5) Even accounting for the bard having feign weakness, at a certain point you gotta hope the bard might take enough damage for wimpy to kick in and cutoff to lag him or something along those lines. Therefore, having two things (felar chief too) cutting the bard off would likely be a relative death sentence.
6) All things considered, the bard only sings battaglia and vibrato twice. No echoes. No apocalyptic. No other nasty ass bard songs. Maybe because he was being lagged by the paladin, single mob and the cranialing warrior (since, as you saw in the other log, the bard did not have a full helm and was taking full lag from cranial) So, in a way, they kinda succeeded in their mission to keep the most "dangerous" character to all of them from truly fucking them up. Not that it mattered though.
7) You're not trying to help, at all. You never have, with any of your posts. They've all been cries for attention, which is cool, I do that shit all the time. I don't pretend it's anything other than that though, so it's rather facetious for you to do such. Then again, you might be an asshole and not give a fuck :)