So you're saying you leveled your bard to 65 without learning to swarm kite? WOW! That must have taken quite a while. All I can say is cut that out, you're giving bards a good name... ROFL
If you want to LEARN to swarm, I'd suggest the same places I send people in their 40s, to either EW to swarm ulthorks or TD to swarm Spirocs. Don't worry that you won't get exp, just get down the techique. Then you can move on to stuff that may give you exp. The stuff that will is likely much harder to swarm, so you should have the basics down before you try.
Lastly, expect to die a few times, or have to run to zone when first starting out, it takes a bit to get the hang of.
As for not being a good group bard if you can't swarm, I'd love to hear their logic on that one. Aside from being able to kite adds to save train wipes, I'm not sure how relevent swarming is to grouping. Could just be me though.
Good luck and congrats on 65 the hard way!
Sinfonian