This doesn't seem like it would be that hard to fix. You can actually simulate swarm kiting by charming a mob that has low hp (the low hp aggro will be enough to attract the "swarm") so clearly there must be some way to code it so that the aggro on the bard is less than the aggro on the charmed pet.
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Project 1999 (PvE):
Giegue Nessithurtsithurts, 60 Bard <Divinity>
Starman Deluxe, 24 Enchanter
Lardna Minch, 18 Warrior
Project 1999 (PvP):
[50 (sometimes 49) Bard] Wolfram Alpha (Half Elf) ZONE: oasis |